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Thermodynamic process that is reversible and adiabatic
An isentropic process is an idealized thermodynamic process that is both adiabatic and reversible.[excessive citations] In thermodynamics, adiabatic processes
Isentropic_process
Fluid flow through a narrow opening with no change in entropy
mechanics, isentropic nozzle flow describes the movement of a fluid through a narrow opening without an increase in entropy (an isentropic process). Whenever
Isentropic_nozzle_flow
Thermodynamic cycle for spark ignition piston engines
quasi-parallel and isentropic processes (frictionless, adiabatic reversible). Left and right sides of the loop: a pair of parallel isochoric processes (constant
Otto_cycle
Thermodynamic process
= 1 {\displaystyle n=1} for an isothermal process, n = γ {\displaystyle n=\gamma } for an isentropic process. Where γ {\displaystyle \gamma } is the ratio
Polytropic_process
Thermodynamic cycle
by isentropic compression and expansion, and isobaric heat addition and rejection, though practical engines have adiabatic rather than isentropic steps
Brayton_cycle
Equation of the state of a hypothetical ideal gas
the properties at state 1 using the equations listed. ^ a. In an isentropic process, system entropy (S) is constant. Under these conditions, p1V1γ = p2V2γ
Ideal_gas_law
Thermodynamic process in which no mass or heat is exchanged with surroundings
the system will rise. Such a process is called an isentropic process and is said to be "reversible". Ideally, if the process were reversed the energy could
Adiabatic_process
Ratio of static enthalpy change within a turbomachine to that of the whole stage
in the rotor: R = Isentropic enthalpy change in rotor Isentropic enthalpy change in stage {\displaystyle R={\frac {\text{Isentropic enthalpy change in
Degree_of_reaction
Mathematical model which approximates the behavior of real gases
P 0 + γ ln V V 0 = ln P V γ P 0 V 0 γ ⟹ P V γ = const. for isentropic process . {\displaystyle {\frac {\Delta S}{Nk{\hat {c}}_{V}}}=\ln {\frac {P}{P_{0}}}+\gamma
Ideal_gas
Thermodynamic process with no change in enthalpy
{\displaystyle dh=0=nc_{p}\,dT} . Adiabatic process Joule–Thomson effect Ideal gas laws Isentropic process G. J. Van Wylen and R. E. Sonntag (1985), Fundamentals
Isenthalpic_process
Physics of heat, work, and temperature
are: Adiabatic process: occurs without loss or gain of energy by heat Isenthalpic process: occurs at a constant enthalpy Isentropic process: a reversible
Thermodynamics
Type of turbine for high-pressure gas
high-pressure gas, the expansion is approximated by an isentropic process (i.e., a constant-entropy process), and the low-pressure exhaust gas from the turbine
Turboexpander
Machine to increase pressure of gas by reducing its volume
flow process can be calculated. dH = VdP +TdS Isentropic dS is zero. dH = VdP Non flow isentropic processes like some positive displacement compressors
Compressor
Passage of a system from an initial to a final state of thermodynamic equilibrium
energy from the system. An isentropic process is customarily defined as an idealized quasi-static reversible adiabatic process, of transfer of energy as
Thermodynamic_process
Engine combustion process
follows four distinct processes: 1→2 : isentropic compression of the fluid (blue) 2→3 : constant pressure heating (red) 3→4 : isentropic expansion (yellow)
Diesel_cycle
Graph relating temperature and entropy during a thermodynamic process or cycle
of their T–s diagram. An isentropic process is depicted as a vertical line on a T–s diagram, whereas an isothermal process is a horizontal line. Carnot
Temperature–entropy_diagram
Lowest layer of Earth's atmosphere
parcel; atmospheric compression and expansion are measured as an isentropic process ( d S = 0 {\displaystyle dS=0} ) wherein there occurs no change in
Troposphere
Lowest theoretical temperature
Although absolute zero can be approached, it cannot be reached. Some isentropic processes, such as adiabatic expansion, can lower the system's temperature
Absolute_zero
Machine that uses steam to rotate a shaft
turbine. An ideal steam turbine is considered to be an isentropic process, or constant entropy process, in which the entropy of the steam entering the turbine
Steam_turbine
System that converts heat or thermal energy to mechanical work
system during adiabatic process) isentropic (reversible adiabatic process, no heat is added or removed during isentropic process) Energy portal Carnot heat
Heat_engine
Resistance of a material to uniform pressure
distinctions are especially relevant for gases. For an ideal gas, an isentropic process has: P V γ = constant ⇒ P ∝ ( 1 V ) γ ∝ ρ γ , {\displaystyle PV^{\gamma
Bulk_modulus
Theoretical engine
two adiabatic processes involved to show an isentropic process property for the ratio of the changing volumes of two isothermal processes are equal. Most
Carnot_heat_engine
Method for matching variable production with demand
near-reversible isothermal process or an isentropic process is desired. In an isothermal compression process, the gas in the system is kept at a constant
Compressed-air_energy_storage
Chart describing internal energy of thermodynamic systems
isenthalpic process. A vertical line in the h–s chart represents an isentropic process. The process 3–4 in a Rankine cycle is isentropic when the steam
Enthalpy–entropy_chart
Sum of the static and dynamic pressure
-1}{2}}M^{2}\right)^{\frac {\gamma }{\gamma -1}}\,} or, assuming an isentropic process, the stagnation pressure can be calculated from the ratio of stagnation
Stagnation_pressure
Fluid flow through a constant-area duct with friction
flow Mass injection flow Isentropic process Isothermal flow Gas dynamics Compressible flow Choked flow Enthalpy Entropy Isentropic nozzle flow Shapiro, A
Fanno_flow
Thermodynamic quantity
sometimes also known as the isentropic expansion factor and is denoted by γ (gamma) for an ideal gas or κ (kappa), the isentropic exponent for a real gas
Heat_capacity_ratio
Thermodynamic process
thermodynamics, a quasi-static process, also known as a quasi-equilibrium process (from Latin quasi, meaning ‘as if’), is a thermodynamic process that happens slowly
Quasistatic_process
Thermodynamic cycle that includes the basic Stirling engine
heat-rejection processes is the Stirling cycle, which is an altered version of the Carnot cycle in which the two isentropic processes featured in the
Stirling_cycle
Phenomenon in fluid dynamics
the static pressure, temperature and density decrease. Since the process is isentropic, the stagnation properties (e.g. the total pressure and total temperature)
Prandtl–Meyer_expansion_fan
Process that cannot be undone or reversed
In thermodynamics, an irreversible process is a process impossible to reverse or undo. All complex natural processes are irreversible, although a phase
Irreversible_process
Law of physics
Suppose that the temperature of a substance can be reduced in an isentropic process by changing the parameter X from X2 to X1. One can think of a multistage
Third_law_of_thermodynamics
External combustion engine using air as the working fluid
(no heat is added or removed from the working fluid) isentropic process, reversible adiabatic process (no heat is added or removed from the working fluid
Hot_air_engine
Thermodynamic process in which temperature remains constant
An isothermal process is a type of thermodynamic process in which the temperature T of a system remains constant: ΔT = 0. This typically occurs when a
Isothermal_process
Thermodynamic process of a closed system in which volume remains constant
an isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process during which
Isochoric_process
Fluid flow temperature in aviation
Outside air temperature Mach number Speed of sound Adiabatic process Isentropic process Specific enthalpy In-Flight Temperature Measurements Measurement
Total_air_temperature
Idealized thermodynamic cycle used in engines
heat addition; 2–3: Isentropic expansion; 3–1: Constant pressure (isobaric) heat rejection. The expansion process is isentropic and hence involves no
Lenoir_cycle
Sub-class of turbomachinery
(loss). Assuming dry air, and the ideal-gas equation of state and an isentropic process, there is enough information to define the pressure ratio and efficiency
Centrifugal_compressor
Model of fluid flow through a frictionless constant-area duct with heat transfer
and Fanno models at these points. Fanno flow Mass injection flow Isentropic process Isothermal flow Gas dynamics Compressible flow Choked flow Enthalpy
Rayleigh_flow
Linked cyclic series of thermodynamic processes
removed from the system, as the work done by the system is zero. Isentropic : The process is one of constant entropy ( S = c o n s t a n t {\displaystyle
Thermodynamic_cycle
Thermodynamic process in which pressure remains constant
In thermodynamics, an isobaric process is a type of thermodynamic process in which the pressure of the system stays constant: ΔP = 0. The heat transferred
Isobaric_process
Thermodynamic cycle for combustion engines
of heat at constant volume. Process 3-4: Addition of heat at constant pressure. Process 4-5: Isentropic expansion. Process 5-1: Rejection of heat at constant
Mixed/dual_cycle
Thermodynamic cycle
consists of: 1–2 Isentropic, or reversible, adiabatic compression 2–3 Isochoric heating (Qp) 3–4 Isobaric heating (Qp') 4–5 Isentropic expansion 5–6 Isochoric
Atkinson_cycle
Model that is used to predict the performance of steam turbine systems
turbine would be isentropic: i.e., the pump and turbine would generate no entropy and would hence maximize the net work output. Processes 1–2 and 3–4 would
Rankine_cycle
d S = δ Q T {\displaystyle dS={\frac {\delta Q}{T}}} , for reversible processes only Below are useful results from the Maxwell–Boltzmann distribution
Table of thermodynamic equations
Table_of_thermodynamic_equations
Type of thermodynamic cycle
heat-rejection processes is the Ericsson cycle. The Ericsson cycle is an altered version of the Carnot cycle in which the two isentropic processes featured
Ericsson_cycle
as the BZT fluids exhibit Γ < 0 {\displaystyle \Gamma <0} . In an isentropic process, the sound speed increases with pressure when Γ > 1 {\displaystyle
Landau_derivative
Model of fluid flow
also has applicability as upper boundary to Fanno flow. Fanno flow Isentropic process Rayleigh flow Shapiro, A.H., The Dynamics and Thermodynamics of Compressible
Isothermal_flow
Closed thermodynamic cycle involving fluid
heat injection process in the cycle. Along adiabatic and isentropic processes, such as those theoretically associated with pumping processes in transcritical
Transcritical_cycle
Law of thermodynamics establishing the conservation of energy
ISBN 1-86094-347-0, pp. 89–110. Kestin, J. (1961). "On intersecting isentropics". Am. J. Phys. 29 (5): 329–331. Bibcode:1961AmJPh..29..329K. doi:10.1119/1
First_law_of_thermodynamics
Nonlinear partial differential equation
is the polytropic exponent (equal to the heat capacity ratio for isentropic processes). Assuming constant porosity, permeability, and dynamic viscosity
Porous_medium_equation
Physical law for entropy and heat
and provides necessary criteria for spontaneous processes. For example, the first law allows the process of a cup falling off a table and breaking on the
Second_law_of_thermodynamics
Dimensionless number in fluid mechanics
elasticity, (SI units: Pa) For isentropic processes, the Cauchy number may be expressed in terms of Mach number. The isentropic bulk modulus K s = γ p {\displaystyle
Cauchy_number
Parameter used to calculate the volume change of a fluid or solid in response to pressure
magnitude of the compressibility depends strongly on whether the process is isentropic or isothermal. Accordingly, isothermal compressibility is defined:
Compressibility
Type of energy transfer
modes of transfer in order to ensure a strict logical distinction. In the process of transfer, heat is not necessarily conserved, but can be generated (though
Heat
Phenomenon of non-ideal fluids changing temperature
If the expansion process is reversible, meaning that the gas is in thermodynamic equilibrium at all times, it is called an isentropic expansion. In this
Joule–Thomson_effect
Observational basis of thermodynamics
thermodynamic equilibrium. The laws also use various parameters for thermodynamic processes, such as thermodynamic work and heat, and establish relationships between
Laws_of_thermodynamics
Process whose direction can be reversed
In thermodynamics, a reversible process is a process, involving a system and its surroundings, whose direction can be reversed by infinitesimal changes
Reversible process (thermodynamics)
Reversible_process_(thermodynamics)
Study of heat-to-work transformations and their reverse
heat capacities, the assumption of isentropic processes (in which entropy is a constant), and moist adiabatic processes (during which no energy is transferred
Atmospheric_thermodynamics
The theoretical specific entropy and enthalpy after this ideal, isentropic process are given by s 2 , r e v {\displaystyle s_{2,rev}} and h 2 , r e v
Gouy–Stodola_theorem
Chemical process in the liquefaction of gas
The Hampson–Linde cycle is a process for the liquefaction of gases, especially for air separation. William Hampson and Carl von Linde independently filed
Hampson–Linde_cycle
Air that has been condensed into a liquid
Claude's process, which combines cooling by Joule–Thomson effect, isentropic expansion and regenerative cooling. In manufacturing processes, the liquid
Liquid_air
Thermodynamic quantity
path of a process through the equilibrium state space of a thermodynamic system is termed a process function, or, alternatively, a process quantity, or
Process_function
Branch of fluid mechanics
heat transfer), Steady vs. Unsteady Flow, Flow is isentropic (i.e. a reversible adiabatic process), Ideal gas law (i.e. P = ρRT) As the speed of a flow
Compressible_flow
Machine to pressurize air
data sheets, the higher the isentropic efficiency is, the better the energy saving is. The better air compressor isentropic efficiency has reached 95%
Air_compressor
is the decrease of the Mach number in isentropic expansions occurring in the supersonic regime, namely processes in which the fluid density decreases.
Non ideal compressible fluid dynamics
Non_ideal_compressible_fluid_dynamics
Physical property of matter
as the definition of the isobaric heat capacity. A system undergoing a process at constant volume implies that no expansion work is done, so the heat
Heat_capacity
Thermodynamic cycle
combustion. Hence, the ideal Humphrey cycle consists of 4 processes: Reversible, adiabatic (isentropic) compression of the incoming gas. During this step incoming
Humphrey_cycle
Meteorological technique for determining air motion above the planetary boundary layer
e. non-heat-exchanging) process above the planetary boundary layer. The change of state of air parcels following isentropic surfaces does not involve
Isentropic_analysis
Change in temperature due to a magnetic field
physicists as adiabatic demagnetization. In that part of the refrigeration process, a decrease in the strength of an externally applied magnetic field allows
Magnetocaloric_effect
Technique to remove component substances from a gaseous mixture
deep pressure drop to about 30% of feed pressure. This is a near isentropic process and the corresponding temperature reduction leads to condensation
Supersonic_gas_separation
Thermodynamic potential
Helmholtz energy during a process is equal to the maximum amount of work that the system can perform in a thermodynamic process in which temperature is
Helmholtz_free_energy
Pressurized gas or liquid in a heat engine
dry and isentropic refer to the quality of vapour after the working fluid undergoes an isentropic (reversible adiabatic) expansion process from saturated
Working_fluid_selection
Variation on the Rankine thermodynamic cycle
engine's theoretical model, the expansion is isentropic and the evaporation and condensation processes are isobaric. In any real cycle, the presence
Organic_Rankine_cycle
Body of matter in a state of internal equilibrium
systems can be passive and active according to internal processes. According to internal processes, passive systems and active systems are distinguished:
Thermodynamic_system
Principle relating to fluid dynamics
is only applicable for isentropic flows: when the effects of irreversible processes (like turbulence) and non-adiabatic processes (e.g. thermal radiation)
Bernoulli's_principle
Technologies to store thermal energy
to store energy as a temperature difference between two heat stores. Isentropic systems involve two insulated containers filled, for example, with crushed
Thermal_energy_storage
liquid. Air can also be liquefied by Claude's process, in which the gas is allowed to expand isentropically twice in two chambers. While expanding, the
Liquefaction_of_gases
Version of the second law of thermodynamics
instant in time. The closed integral is carried out along a thermodynamic process path from the initial/final state to the same initial/final state (thermodynamic
Clausius_theorem
Concept in general relativity and quantum field theory
(matter) Equilibrium Control volume Instruments Processes Isobaric Isochoric Isothermal Adiabatic Isentropic Isenthalpic Quasistatic Polytropic Free expansion
Black_hole_thermodynamics
Type of turbine
accompanied by an energy transformation process occurs in the rotor. A reference velocity (c0) known as the isentropic velocity, spouting velocity or stage
Radial_turbine
Thermodynamic cycle
(matter) Equilibrium Control volume Instruments Processes Isobaric Isochoric Isothermal Adiabatic Isentropic Isenthalpic Quasistatic Polytropic Free expansion
Miller_cycle
Heat required to raise the temperature of a given unit of mass of a substance
to heat capacity at constant volume. It is sometimes also known as the isentropic expansion factor. In theory, the specific heat capacity of a substance
Specific_heat_capacity
Markovich Khalatnikov Isaak Pomeranchuk Isabella Karle Isenthalpic process Isentropic process Ishfaq Ahmad Ishrat Hussain Usmani Isidor Isaac Rabi Isidor Sauers
Index_of_physics_articles_(I)
Physical law for definition of temperature
the labeling may be quite arbitrary, temperature is just such a labeling process which uses the real number system for tagging. The zeroth law justifies
Zeroth_law_of_thermodynamics
Concept in computer science
computing (see adiabatic process). Although in practice no nonstationary physical process can be exactly physically reversible or isentropic, there is no known
Reversible_computing
Thermodynamics experiment
change of state. For example, a steam turbine is not isentropic, as friction, choke and shock processes produce entropy. A typical experiment, consists of
Rüchardt_experiment
Diagram showing the thermodynamic states of a material
this process due to the free floating piston being allowed to rise making the process an isobaric process or constant pressure process. This Process Path
Thermodynamic_diagrams
Propagating disturbance
a gas in a supersonic flow can be compressed. Some other methods are isentropic compressions, including Prandtl–Meyer compressions. The method of compression
Shock_wave
Property of a thermodynamic system
concentrated. A consequence of the second law of thermodynamics is that certain processes are irreversible. The thermodynamic concept was referred to by Scottish
Entropy
Idealized thermodynamic cycle
temperature is constant (isothermal process). Heat transfer from point 4 to 1 and point 2 to 3 are equal to zero (adiabatic process). A Carnot cycle plotted on
Carnot_cycle
Properties independent of system size, and proportional to system size
not conserved in a thermodynamic process of transfer between a system and its surroundings. In a thermodynamic process in which a quantity of energy is
Intensive and extensive properties
Intensive_and_extensive_properties
Type of energy transfer
Thermodynamic work is one of the principal kinds of process by which a thermodynamic system can interact with and transfer energy to its surroundings
Work_(thermodynamics)
State of thermodynamic systems where no net flow of matter or energy occurs
natural process proceeds at a finite rate for the main part of its course. It is thereby radically different from a fictive quasi-static 'process' that
Thermodynamic_equilibrium
Simplified approach for understanding fluid motions in a rotating system
ζ θ {\displaystyle \zeta _{\theta }} is the relative vorticity on an isentropic surface—a surface of constant potential temperature, and Δ = − δ p / g
Potential_vorticity
Initial step in the phase transition or molecular self-assembly of a substance
within a substance or mixture. Nucleation is typically defined as the process that determines how long an observer must wait before a new phase or self-organised
Nucleation
Calculations in aerodynamics
+1}}}}\right)^{\frac {1}{\gamma -1}}} Note that before and after the shock the isentropic relations are valid and connect static and total quantities. That means
Normal_shock_tables
State function whose change relates to the system's maximal work output
work that the system can perform in a process at constant temperature, and its sign indicates whether the process is thermodynamically favorable or forbidden
Thermodynamic_free_energy
Speed of sound wave through elastic medium
} where K s {\displaystyle K_{s}} is a coefficient of stiffness, the isentropic bulk modulus (or the modulus of bulk elasticity for gases); ρ {\displaystyle
Speed_of_sound
Function describing equilibrium states of a system
expressed by exact differentials. In contrast, mechanical work and heat are process quantities or path functions because their values depend on a specific
State_function
ISENTROPIC PROCESS
ISENTROPIC PROCESS
Surname or Lastname
English (chiefly southwestern England and South Wales)
English (chiefly southwestern England and South Wales) : occupational name for a fuller, from an agent derivative of Middle English tuck(en) ‘to full cloth’ (Old English tūcian ‘to torment’). This was the term used for the process in the Middle Ages in southwestern England, and the surname is more common there than elsewhere. Compare Fuller and Walker.Americanized form of Jewish To(c)ker (see Tokarz).Irish : Anglicized form of Gaelic Ó Tuachair ‘descendant of Tuachar’, a personal name composed of the elements tuath ‘people’ + car ‘dear’, ‘beloved’.Possibly also an Americanized form of German Tucher, from an occupational name for a cloth maker or merchant, from an agent derivative of Middle High German tuoch ‘cloth’.
Surname or Lastname
English
English : nickname from Old French certeyn ‘self-assured’, ‘determined’. (The phonetic change of -er- to -ar- was a normal process in Middle English).
Surname or Lastname
English
English : topographic name for someone who lived near a stone cross set up by the roadside or in a marketplace, from Old Norse kross (via Gaelic from Latin crux, genitive crucis), which in Middle English quickly and comprehensively displaced the Old English form crūc (see Crouch). In a few cases the surname may have been given originally to someone who lived by a crossroads, but this sense of the word seems to have been a comparatively late development. In other cases, the surname (and its European cognates) may have denoted someone who carried the cross in processions of the Christian Church, but in English at least the usual word for this sense was Crozier.Irish : reduced form of McCrossen.In North America this name has absorbed examples of cognate names from other languages, such as French Lacroix.
Surname or Lastname
English
English : occupational name for a medieval court official, from Middle English bedele (Old English bydel, reinforced by Old French bedel). The word is of Germanic origin, and akin to Old English bēodan ‘to command’ and Old High German bodo ‘messenger’. In the Middle Ages a beadle in England and France was a junior official of a court of justice, responsible for acting as an usher in a court, carrying the mace in processions in front of a justice, delivering official notices, making proclamations (as a sort of town crier), and so on. By Shakespeare’s day a beadle was a sort of village constable, appointed by the parish to keep order.
Surname or Lastname
English
English : of uncertain origin. It is argued by Redmonds that this surname may have developed as a variant of Stringfellow, through a process, attested in various parish records, in which the original name is first shortened and then expanded into a form different from the original; thus Stringfellow becomes Stringfell, which becomes reinterpreted as Stringfield.
Surname or Lastname
English (chiefly Devon)
English (chiefly Devon) : occupational name for a soapmaker, from an agent derivative of Middle English sÅpe ‘soap’ (apparently of Celtic origin). The process involved boiling oil or fat together with potash or soda.
Surname or Lastname
English, Scottish, Dutch, and North German
English, Scottish, Dutch, and North German : status name for a champion, Middle English and Middle Low German kempe. In the Middle Ages a champion was a professional fighter on behalf of others; for example the King’s Champion, at the coronation, had the duty of issuing a general challenge to battle to anyone who denied the king’s right to the throne. The Middle English word corresponds to Old English cempa and Old Norse kempa ‘warrior’; both these go back to Germanic campo ‘warrior’, which is the source of the Dutch and North German name, corresponding to High German Kampf.Dutch : metonymic occupational name for someone who grew or processed hemp, from Middle Dutch canep ‘hemp’.
Surname or Lastname
English and French
English and French : occupational name for one who carried a cross or a bishop’s crook in ecclesiastical processions, from Middle English, Old French croisier.
Surname or Lastname
English
English : from Middle English crouch, Old English crūc ‘cross’ (a word that was replaced in Middle English by the word cross, from Old Norse kross), applied either as a topographic name for someone who lived by a cross or possibly as a nickname for someone who had carried a cross in a pageant or procession.Dutch : from Middle Dutch croech ‘jug’, ‘pitcher’, hence a metonymic occupational name for a potter.
Surname or Lastname
English and Scottish
English and Scottish : metonymic occupational name for a harpist (see Harper), or occasionally a habitational name for someone living at a house distinguished by the sign of a harp.English : habitational name from a minor place such as Harp House in Eastwood, Essex, or South Harp in South Petherton, Somerset, denoting a place where salt was produced, from Old English hearpe ‘harp’, an implement used in the processing of salt. Compare Harpham.German : metonymic occupational name for a harpist, from Middle High German harpfe ‘harp’.German : variant of Harpe.
Surname or Lastname
English and Jewish (Ashkenazic)
English and Jewish (Ashkenazic) : occupational name for a flax grower or dealer or for someone who processed it for weaving (see Flax).Probably a respelling of German Flachsmann, of the same meaning as 1, from Middle High German vlahs ‘flax’ + man ‘man’.
Surname or Lastname
English and Dutch
English and Dutch : occupational name for a tanner of skins, Middle English tanner, Middle Dutch taenre. (The Middle English form derives from Old English tannere, from Late Latin tannarius, reinforced by Old French taneor, from Late Latin tannator; both Late Latin forms derive from a verb tannare, possibly from a Celtic word for the oak, whose bark was used in the process.)Swiss and German : habitational name for someone from any of several places called Tanne (in the Harz Mountains and Silesia) or Tann (southern Germany).Finnish : topographic or ornamental name from Finnish tanner ‘open field’.
Surname or Lastname
English and Scottish
English and Scottish : occupational name for an archer, Middle English bow(e)man, bouman (from Old English boga ‘bow’ + mann ‘man’). This word was distinguished from Bowyer, which denoted a maker or seller of the articles. It is possible that in some cases the surname referred originally to someone who untangled wool with a bow. This process, which originated in Italy, became quite common in England in the 13th century. The vibrating string of a bow was worked into a pile of tangled wool, where its rapid vibrations separated the fibers, while still leaving them sufficiently entwined to produce a fine, soft yarn when spun.Americanized form of German Baumann (see Bauer) or the Dutch cognate Bouman.
Surname or Lastname
English
English : from an agent derivative of Middle English wasch(en) ‘to wash’ (Old English wæscan), hence an occupational name for a laundryman, or for someone who washed raw wool before spinning. Various other occupations, too, involved washing processes and the name may relate to any of these. For example, it may have denoted a man who washed sheep; some tenants on the manor of Burpham, near Worthing, in Sussex (where the surname is found from an early date), had as part of their feudal service to wash the flocks of their master.Americanized spelling of the German cognate Wascher.
Surname or Lastname
English
English : occupational name for a winder of wool, from an agent derivative of Middle English winde(n) ‘to wind’ (Old English windan ‘to go’, ‘to proceed’). The verb was also used in the Middle Ages of various weaving and plaiting processes, so that in some cases the name may have referred to a basket or hurdle maker.English : habitational name from any of the various minor places in northern England so called, from Old English vindr ‘wind’ + erg ‘hut’, ‘shelter’, i.e. a shelter against the wind.English : John Winder is recorded in Somerset Co., MD, in 1665. William Henry Winder, born in the county in 1775, was blamed for the military defeat that led to the British burning of Washington, DC, in 1814; his son John Henry Winder (b. 1800) was a confederate general who was commander of southern military prisons.
Surname or Lastname
English
English : occupational name for a maker of wheels (for vehicles or for use in spinning or various other manufacturing processes), from an agent derivative of Middle English whele ‘wheel’. The name is particularly common on the Isle of Wight; on the mainland it is concentrated in the neighboring region of central southern England.A founder of Salisbury, NH, in 1634 was John Wheeler.
Surname or Lastname
English
English : metonymic occupational name for a keeper of a lodging house, from late Old English herebeorg ‘shelter’, ‘lodging’ (from here ‘army’ + beorg ‘shelter’). (The change of -er- to -ar- is a regular phonetic process in Old French and Middle English.)Variant of French Arbour.A Harbour or Arbour, from Normandy, France, is documented in Quebec City in 1671.
Surname or Lastname
English
English : from the Norman personal name Bernier.English : from Old English beornan ‘to burn’, hence an occupational name for a burner of lime (compare German Kalkbrenner) or charcoal. It may also have denoted someone who baked bricks or distilled spirits, or who carried out any other manufacturing process involving burning.English : occupational name for a keeper of hounds, from Old Norman French bern(i)er, brenier (a derivative of bren, bran ‘bran’, on which the dogs were fed).Southern English : topographic or occupational name for someone who lived by or worked in a barn, from Middle English bern, barn ‘barn’ + the suffix -er. Compare Barnes.German : habitational name, in Silesia denoting someone from a place called Berna (of which there are two examples); in southern Germany and Switzerland denoting someone from the Swiss city of Berne.German : from the Germanic personal name Bernher meaning ‘lord of the army’.North German : occupational name for a lime or charcoal burner (cognate with 2), from an agent derivative of Middle High German brennen ‘to burn’.
Surname or Lastname
French
French : from Old Norman French cardon ‘thistle’ (a diminutive of carde, from Latin carduus), hence a topographic name for someone who lived on land overgrown with thistles, an occupational name for someone who carded wool (originally a process carried out with thistles and teasels), or perhaps a nickname for a prickly and unapproachable person.French : possibly from a reduced form of the personal name Ricardon, a pet form of Richard.English : variant spelling of Carden, cognate with 1.
Surname or Lastname
English (chiefly West Midlands)
English (chiefly West Midlands) : metonymic occupational name for a fuller, from Middle English tred(en) ‘to tread’ + well ‘well’. Fulling was the process by which newly woven cloth was cleaned and shrunk by the use of heat, water, and pressure (from treading) before finally being stretched and laid out to dry on tenter hooks.
ISENTROPIC PROCESS
ISENTROPIC PROCESS
Boy/Male
Hindu
Lord Vishnu or Lord Krishna
Boy/Male
English
Royal; kingly.
Boy/Male
English American German
Polite; courteous.
Girl/Female
Christian & English(British/American/Australian)
Born at Christmas Time
Girl/Female
Muslim
Happiness, Joy
Girl/Female
Indian
Patience, Endurance, Passion
Boy/Male
French
Red haired.
Surname or Lastname
English
English : variant of Selvage.
Boy/Male
Hindu, Indian
Excessive Joy; Pleasure; Delight; Happiness
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi, Sikh, Sindhi, Tamil, Telugu, Traditional
The Decorative End of a Sari
ISENTROPIC PROCESS
ISENTROPIC PROCESS
ISENTROPIC PROCESS
ISENTROPIC PROCESS
ISENTROPIC PROCESS
n.
A manual of processions; a processional.
a.
Of or pertaining to a procession; consisting in a procession.
a.
Having equal entropy.
n.
A service book relating to ecclesiastical processions.
n.
An officer appointed to procession lands.
n.
One who goes or marches in a procession.
a.
Exhibiting differences of quality or property in different directions; not isotropic.
n.
A proceeding prescribed by statute for ascertaining and fixing the boundaries of land. See 2d Procession.
a.
Pertaining to a procession; consisting in processions; as, processionary service.
a.
Isotropic.
a.
Pertaining to, or designating, an acid obtained from atropine, and isomeric with cinnamic acid.
a.
Having the same properties in all directions; specifically, equally elastic in all directions.
n.
An old term for litanies which were said in procession and not kneeling.
v. i.
To march in procession.
n.
One who takes part in a procession.
a.
Not isotropic; having different properties in different directions; thus, crystals of the isometric system are optically isotropic, but all other crystals are anisotropic.
n.
A hymn, or other selection, sung during a church procession; as, the processional was the 202d hymn.
v. i.
To honor with a procession.