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Concept in mathematical physics
mathematical physics, a null dust solution (sometimes called a null fluid) is a Lorentzian manifold in which the Einstein tensor is null. Such a spacetime can
Null_dust_solution
Class of exact solutions to Einstein's field equations
dust solution. A null dust solution is a dust solution where the Einstein tensor is null.[further explanation needed] A Bianchi dust model exhibits various[which
Dust_solution
Solution of Einstein field equations
swirling dust particles (see Dust solution), and the second associated with a negative cosmological constant (see Lambdavacuum solution). This solution has
Gödel_metric
Exact solution of the Einstein field equations
Stockum dust or the Lanczos–van Stockum dust is an exact solution of the Einstein field equations where the gravitational field is generated by dust rotating
Van_Stockum_dust
Concept in general relativity
spacetime can be interpreted, in the context of general relativity, as a null dust solution. Also, the Weyl tensor always has Petrov type N as may be verified
Pp-wave_spacetime
American physicist
under the direction of Jon Mathews. In 1969, he published an exact null dust solution to the Einstein field equation and thereby created the photon rocket
William_Morris_Kinnersley
Exact spherically symmetric solution in GR
symmetric and nonrotating star which is either emitting or absorbing null dusts. It is named after the Indian physicist Prahalad Chunnilal Vaidya and
Vaidya_metric
is the field energy (and momentum) of the electromagnetic field, Null dust solutions: T α β {\displaystyle T^{\alpha \beta }} must correspond to a stress–energy
Exact solutions in general relativity
Exact_solutions_in_general_relativity
Solution of Einstein field equations
light (null dusts) or dark matter, and thus provides an incomplete description of stellar mass black holes and active galactic nuclei. The solution however
Kerr–Newman_metric
Japanese academic, artist, and entrepreneur
Forum. In 2023 Pixie Dust Technologies listed on the NASDAQ stock exchange; the company went private again in 2024. In 2025 null², Ochiai's Signature
Yoichi_Ochiai
Exact solution in general relativity
\\\end{array}}\right.} This is a null dust solution and can be interpreted as incoherent electromagnetic radiation. The exterior part of the solution is defined by { d
Bonnor_beam
Classification used in differential geometry and general relativity
the class of non-conformally flat null electrovacuum or null dust solutions admitting an expanding but nontwisting null congruence is precisely the class
Petrov_classification
solution describe a spherical electrically charged black hole. 1960 – Ivor M. Robinson and Andrzej Trautman discover the Robinson-Trautman null dust solution
Timeline of gravitational physics and relativity
Timeline_of_gravitational_physics_and_relativity
Proposed theory of gravitation
vacuum solutions of Brans–Dicke theory. Similarly, an important class of spacetimes, the pp-wave metrics, are also exact null dust solutions of both
Brans–Dicke_theory
required to compare any two null dust solutions, at most two differentiations are required to compare any two Petrov D vacuum solutions, at most three differentiations
Cartan–Karlhede_algorithm
Nucleosynthesis Nuclide Nuclotron Nuker Team Null corrector Null dust solution Null surface Nuller Nulling interferometry Number density Numerical model
Index_of_physics_articles_(N)
source-free solution of the Maxwell field equations on the particular curved spacetime defined by the metric tensor above. It is a null solution, and it represents
Monochromatic electromagnetic plane wave
Monochromatic_electromagnetic_plane_wave
World line of a particle in spacetime which returns to its starting point
hole the van Stockum dust (which models a cylindrically symmetric configuration of dust) the Gödel lambda dust (which models a dust with a carefully chosen
Closed_timelike_curve
Hypothetical object usable as a time machine
important exact solutions in general relativity, including the Kerr vacuum (which models a rotating black hole) and the van Stockum dust (which models a
Tipler_cylinder
Result in general relativity
description of the motion of the dust. There is also an optical (or null) version of Raychaudhuri's equation for null geodesic congruences : θ ˙ = − 1
Raychaudhuri_equation
Exact solution for the Einstein field equations
as follows. These solutions were proposed by Kerr and Schild in 1965. Notice that k is a unit 3-vector, making the 4-vector a null vector, with respect
Kerr_metric
Process by which dust, particulates, etc. scatter light
known as null field method and extended boundary technique method (EBCM). Matrix elements are obtained by matching boundary conditions for solutions of Maxwell
Light_scattering_by_particles
Set of integral curves of a vector field
be an exact or approximate solution to the Einstein field equation. Congruences generated by nowhere vanishing timelike, null, or spacelike vector fields
Congruence (general relativity)
Congruence_(general_relativity)
Key results in general relativity on gravitational singularities
less common in known solutions of the Einstein field equations. Null singularities: These singularities occur on light-like or null surfaces. An example
Penrose–Hawking singularity theorems
Penrose–Hawking_singularity_theorems
Hypothetical topological feature of spacetime
different points in time, or both). Wormholes are based on a special solution of the Einstein field equations, and are consistent with the general theory
Wormhole
due to experimental error. Many physicists dust off Stokes' work, and dragging becomes the "standard solution" 1887 to 1888 – Heinrich Hertz verifies the
Timeline of luminiferous aether
Timeline_of_luminiferous_aether
Topics referred to by the same term
Null device, a special computer file, named /dev/null on Unix systems, that discards all data written to it Null, a value that a variable of nullable
Nothing_(disambiguation)
Predecessor to the theory of relativity
(expressed in cylindrical, polar spherical, or double null coordinates, respectively). But the general solution of the ordinary three-dimensional wave equation
Nordström's theory of gravitation
Nordström's_theory_of_gravitation
Diagram of different points in spacetime
diagonal boundary lines of a Penrose diagram correspond to the region called "null infinity", or to singularities where light rays must end. Thus, Penrose diagrams
Penrose_diagram
2004 novella by Michael Chabon
nor the boy ever voice the German numeral "null." The novella originally appeared as "The Final Solution: A Story of Detection" "in a slightly different
The_Final_Solution_(novel)
Deliberately simplistic scientific model
considered as the effect of space being a conventional viscous fluid; the null dust; the Gödel metric in general relativity, which allows closed timelike
Toy_model
Two interrelated physics theories by Albert Einstein
sufficiently accurate to detect the expected effects, but he obtained a null result when the first experiment was conducted in 1881, and again in 1887
Theory_of_relativity
Lorentzian manifold where curvature vanishes at large distances
Roberts attempts to argue that the exterior solution in a model of a rotating star should be a perfect fluid or dust rather than a vacuum, and then argues that
Asymptotically_flat_spacetime
Set of spacetime events, light-connected to a given event
In special and general relativity, a light cone (or null cone) is the path that a flash of light, emanating from a single event — localized to a single
Light_cone
Solution of Einstein field equations
Kerr–Newman–de–Sitter metric (KNdS) is one of the most general stationary solutions of the Einstein–Maxwell equations in general relativity that describes
Kerr–Newman–de–Sitter_metric
Type of traversable wormhole
relativity. In Minkowski space-time every timelike and every lightlike (null) geodesic is a straight 'world line' that projects onto a straight-line geodesic
Ellis_wormhole
Mathematical model combining space and time
moving at the speed of light is zero. Such an interval is termed lightlike or null. A photon arriving in our eye from a distant star will not have aged, despite
Spacetime
Coordinate system
within finite proper time. Radial null geodesics correspond to d s 2 = 0 {\displaystyle ds^{2}=0} , which have solutions d τ = ± β d ρ {\displaystyle d\tau
Lemaître_coordinates
Hypothetical FTL transportation by warping space
in 1994, the Alcubierre drive is based on a solution of Einstein's field equations. Since those solutions are metric tensors, the Alcubierre drive is
Alcubierre_drive
Type of horizon in spacetime
is needed is a notion of "future null infinity". This is the set of points which are approached asymptotically by null rays (light rays, for example) which
Absolute_horizon
Theorem in general relativity
precisely, the theorem states that a vacuum solution of the Einstein field equations will admit a shear-free null geodesic congruence if and only if the Weyl
Goldberg–Sachs_theorem
Differentiable manifold with nondegenerate metric tensor
modeling spacetime, where tangent vectors can be classified as timelike, null, and spacelike. In differential geometry, a differentiable manifold is a
Pseudo-Riemannian_manifold
Generalization of straight line to a curved space time
along a timelike geodesic; massless particles like the photon instead follow null geodesics (replace −1 with zero on the right-hand side of the last equation)
Geodesics in general relativity
Geodesics_in_general_relativity
form. No exact solutions of the Kepler problem have been found, but an approximate solution has: the Schwarzschild solution. This solution pertains when
Two-body problem in general relativity
Two-body_problem_in_general_relativity
Unsolved problem in physics
find a way to recover the breaking of electroweak symmetry through a non-null vacuum expectation value. This can be obtained using the Weinberg–Coleman
Hierarchy_problem
Geometric system used in black hole physics
coordinates, in which light cones are round, and thus useful for studying null dusts. Gaussian polar coordinates, sometimes used for studying static spherically
Spherically symmetric spacetime
Spherically_symmetric_spacetime
Mathematical description of spacetime used in relativity
null vectors, called a null basis. Vector fields are called timelike, spacelike, or null if the associated vectors are timelike, spacelike, or null at
Minkowski_spacetime
Region in spacetime from which nothing can escape
Topologically, the event horizon is defined from the causal structure as the past null cone of future conformal timelike infinity. A black hole event horizon is
Event_horizon
Paths of particles in the Schwarzschild solution to Einstein's field equations
found the solution in 1915, only about a month after the publication of Einstein's theory of general relativity. It was the first exact solution of the Einstein
Schwarzschild_geodesics
Compact astronomical body
In 1916, the first solution of general relativity that would characterise a black hole was found. By the late 1950s, this solution began to be interpreted
Black_hole
Halló Frjáls fjarskipti hf. Not operational GSM 1800 MNC withdrawn 274 06 Núll níu ehf Not operational Unknown MNC withdrawn 274 07 IceCell IceCell ehf
Mobile network codes in ITU region 2xx (Europe)
Mobile_network_codes_in_ITU_region_2xx_(Europe)
Theory of gravitation as curved spacetime
predictions follow from the fact that light follows what is called a light-like or null geodesic—a generalization of the straight lines along which light travels
General_relativity
worship of a holy figure. In legal context, occasionally a backing for nulling information that was presented by an attorney. Without any tangible proof
List_of_Latin_phrases_(full)
Maximally symmetric Lorentzian manifold with a negative cosmological constant
symmetry, the conjecture holds true for the specific cases of the Einstein-null dust system with an internal mirror (2017) and the Einstein-massless Vlasov
Anti-de_Sitter_space
Hypothetical phenomenon
horizon is delayed. In the case of a naked singularity, this delay enables null geodesics or light rays to escape the central singularity, where density
Naked_singularity
Notation in general relativity
the case of the NP formalism, the vector basis chosen is a null tetrad: a set of four null vectors—two real, and a complex-conjugate pair. The two real
Newman–Penrose_formalism
American physicist (1929–2021)
relativity, including the Newman–Penrose formalism, Kerr–Newman solution, Heaven, and null foliation theory, for his intellectual passion, generosity and
Ezra_T._Newman
Dictator of Germany from 1933 to 1945
Europe. Germany suffered wholesale destruction, characterised as Stunde Null (Zero Hour). Hitler's policies inflicted human suffering on an unprecedented
Adolf_Hitler
1953 US science fiction film directed by Jack Arnold
2020-03-05 at the Wayback Machine Rotten Tomatoes. Retrieved: July 19, 2025. Null, Christopher. "'It Came From Outer Space'." Archived 2008-12-05 at the Wayback
It_Came_from_Outer_Space
American physicist, writer, and Nobel Laureate (born 1940)
are threaded by quantum fields in quantum states that violate the averaged null energy condition (i.e. have negative renormalized energy spread over a sufficiently
Kip_Thorne
Schon), an old enemy of Kevin and Argit that stranded them alone in the Null Void. But OTTO and Violet Offenders end up stealing some of the most expensive
List of Ben 10: Omniverse episodes
List_of_Ben_10:_Omniverse_episodes
Theory of rapid universe expansion
tensor-to-scalar power ratio r was between 0.15 and 0.27 (rejecting the null hypothesis; r is expected to be 0 in the absence of inflation). However,
Cosmic_inflation
Branch of differential geometry
Relaxing this condition, and allowing that some non-zero vectors can be null under the quadratic form allows the structure of pseudo-Riemannian manifolds
Riemannian_geometry
Random motion of particles suspended in a fluid
More specifically, the fluid's overall linear and angular momenta remain null over time. The kinetic energies of the molecular Brownian motions, together
Brownian_motion
Aspect of relativity in physics
in the construction of GEO600, LIGO, and Virgo. After years of producing null results, improved detectors became operational in 2015. On 11 February 2016
Gravitational_wave
Scientific phenomenon
perpendicularly to the source path and is redshifted. As seen in Figure 4, null frequency shift occurs for a pulse that travels the shortest distance from
Relativistic_Doppler_effect
Hypothetical invisible cosmic material
by orders of magnitude, these direct detection experiments all reported null results for WIMPs across the standard GeV–TeV mass range. As of late 2025
Dark_matter
Retrieved March 4, 2026. Chelosky, Danielle (October 22, 2025). "Angel Dust Announce New Album Cold 2 the Touch: Hear the Title Track". Stereogum. Retrieved
List_of_2026_albums
details of the "Tournament of Power" and states that it will be held in the "Null Realm", a void where the competitors can fight to full potential, adding
List of Dragon Ball Super episodes
List_of_Dragon_Ball_Super_episodes
Mathematical formulation of special and general relativity
massless particles are called "null geodesics", since they lie in a "light cone" or "null cone" of spacetime (the null comes about because their inner
Relativistic Lagrangian mechanics
Relativistic_Lagrangian_mechanics
Mathematical technique used to solve a certain class of partial differential equations
all particles carry information about their collision probability, or the null-collision scheme, which does not analyze all particles but uses the maximum
Particle-in-cell
the Mighty Mutanimals. Null is also shown to be associated with the Four Horsemen of Apocalypse. In the IDW comics, Madame Null is a female denizen of
List of Teenage Mutant Ninja Turtles characters
List_of_Teenage_Mutant_Ninja_Turtles_characters
Key result in general relativity
element must be in the causal future of the origin. If any infinite region has null energy-momentum, then the initial data set is trivial in the sense that it
Positive_energy_theorem
Path of an object through spacetime
equivalent definition will be explained: A world line is either a time-like or a null curve in spacetime. Each point of a world line is an event that can be labeled
World_line
2017 film by Denis Villeneuve
Trellick Tower). For Las Vegas-set scenes, the filmmakers researched intense dust storms in the Sahara, Saudi Arabia and Sydney to replicate the sandy desert
Blade_Runner_2049
1990 film by Paul Verhoeven
was beset by injuries and illness. Almost everyone involved suffered from dust inhalation on set. Food poisoning and gastroenteritis from the local Mexican
Total_Recall_(1990_film)
American computer hardware company
acceleration. The 2D core achieved near-theoretical maximum performance with a null driver test in Windows NT. Voodoo Banshee supports MPEG2 video acceleration
3dfx
NASA/ESA space telescope launched in 1990
conventional refractive null correctors. However, for the final manufacturing step (figuring), they switched to the custom-built reflective null corrector, designed
Hubble_Space_Telescope
arXiv:astro-ph/0603005. Bibcode:2006ApJ...644.1237O. doi:10.1086/503740. S2CID 119428457. [NULL] (31 March 2015). "Kepler: The Transit Timing Variation (TTV) Planet-finding
Methods of detecting exoplanets
Methods_of_detecting_exoplanets
Interplay between observation, experiment, and theory in science
but possibly an artifact of instrumentation (null hypothesis), so he went outside and disproved his null hypothesis by observing SN 1987a with the naked
Scientific_method
Facet of general relativity
spacelike hypersurface chosen. Closely related notions can be defined at null infinity. These are known as the Bondi energy, momentum, and mass, and describe
Mass_in_general_relativity
November 9, 2011 Starfire Studios Breeze Windows Phone November 11, 2011 Null City Software Halo: Combat Evolved Anniversary Xbox 360 November 15, 2011
List of Xbox Game Studios video games
List_of_Xbox_Game_Studios_video_games
Short story by A. E. van Vogt
is flung violently into space, but all that emerges from it is an eddy of dust. Brender returns to find the construct slowly disintegrating in the sand
Vault_of_the_Beast
Airstrike on Jabalia refugee camp
Archived from the original on 1 November 2023. Retrieved 1 November 2023. null (1 November 2023). "Israel-Hamas War: Update from Christoph Koettl". The
31 October 2023 Jabalia refugee camp airstrike
31_October_2023_Jabalia_refugee_camp_airstrike
Nonpoint Nora Northlane Nothingface Nova Twins Novelists Nu-Nation Null Positiv Oblivion Dust Ocean Grove Of Mice & Men Oficina G3 On Broken Wings The One Hundred
List_of_nu_metal_bands
Theory of interwoven space and time by Albert Einstein
referred to as timelike, spacelike or null (lightlike). Note that a null vector is not the same as a zero vector. A null vector is one for which A ⋅ A =
Special_relativity
Converts an electrical audio signal into a corresponding sound
baffle, and these out-of-phase waves are allowed to interact, peaks and nulls in the frequency response result. When the rear radiation is absorbed or
Loudspeaker
Leader of Spain from 1939 to 1975
exclusively in Castilian and any documents written in other languages were deemed null and void. The usage of any other language was forbidden in schools, in advertising
Francisco_Franco
Property of waves that can oscillate with more than one orientation
liquid, at the end of which is another polarizer which is rotated in order to null the transmission of light through it. In many areas of astronomy, the study
Polarization_(waves)
Subregion of the Asian continent
original on 5 December 2022. Retrieved 5 December 2022. Zhao, Jing; Wurigemule, null; Sun, Jin; Xia, Ziyang; He, Guanglin; Yang, Xiaomin; Guo, Jianxin; Cheng
Central_Asia
investigation into "230 significant tornadoes, 246 significant hail events, and 191 null cases across the United States" and how cell mergers, boundaries, other supercells
History_of_tornado_research
available on Xbox One". MajorNelson.com. Retrieved July 16, 2020. "Phantom Dust re-release hits Xbox One, PC tomorrow for free". Polygon. 2017-05-15. Retrieved
List_of_Xbox_One_games_(M–Z)
Depictions of the planet
early depictions of terraforming Venus include A. E. van Vogt's The World of Null-A (1948) and James E. Gunn's The Naked Sky (1955). The terraforming of Venus
Venus_in_fiction
Brazilian aviation pioneer (1873–1932)
15 of the current year, 1900, no one has won it, I consider my commitment null and void. The challenge became known as the Deutsch Prize. The regulations
Alberto_Santos-Dumont
Physical constant equal to the speed of light
space-time null cone in two — one for gravity and another one for light — the authors claimed that Asada's claim was theoretically unsound. The two null cones
Speed_of_gravity
Use of mirrors or lenses to heat a fluid for electricity generation
there is a maximum reachable temperature. When the receiver efficiency is null (blue curve on the figure below), Tmax is: T m a x = ( I C σ ) 0.25 {\displaystyle
Concentrated_solar_power
Property of uniformly space-filling movement
ingredients, industrial process mixing, smoke in a smoke-filled room, the dust in Saturn's rings and so on. To provide a solid mathematical footing, descriptions
Ergodicity
Result of repeatedly applying a mathematical function
invariant measure. It can be visualized as the behavior of a point-cloud or dust-cloud under repeated iteration. The invariant measure is an eigenstate of
Iterated_function
relativity, it is assumed that inertial motion occurs along timelike and null geodesics of spacetime as parameterized by proper time. Geodesics are curves
Mathematics of general relativity
Mathematics_of_general_relativity
J. Michael Straczynski, he is “overweight, prone to gambling constantly (null-pool is his favorite) and fond of women and drinks”. At the start of the
List_of_Babylon_5_characters
NULL DUST-SOLUTION
NULL DUST-SOLUTION
Boy/Male
English
Dusty place; brave soldier.
Biblical
dust
Surname or Lastname
English (Lincolnshire)
English (Lincolnshire) : unexplained. Black identified this as a Scottish name of Pictish origin. However, the modern distribution of the surname, almost exclusively in Lincolnshire and adjoining counties, suggests a more localized eastern English origin.
Surname or Lastname
English
English : nickname for a strong, aggressive, bull-like man, from Middle English bul(l)e, bol(l)e. Occasionally, the name may denote a keeper of a bull. Compare Bulman.German (mainly northern) : from a byname for a cattle breeder, keeper, or dealer. Compare South German Ochs.South German : nickname for a short fat man, a variant of Bolle, or a nickname for a man with the physical characteristics of a bull.
Girl/Female
Hindu
Dust
Girl/Female
Tamil
Kashmalam | கஷà¯à®®à®¾à®‚லம
Dust
Kashmalam | கஷà¯à®®à®¾à®‚லம
Surname or Lastname
English
English : unexplained.Possibly a shortened form of any of several German compound surnames formed with Full- or Füll-.
Male
English
Pet form of English Dustin, probably DUSTY means "Thor's stone."
Boy/Male
Indian, Tamil
Dust
Male
English
Medieval pet form of English Oliver, probably NOLL means "elf army."
Surname or Lastname
English
English : nickname from Middle English dut ‘joy’, ‘delight’.Indian : variant of Datta.German : from the Germanic personal name Dudo (see Due).
Female
English
Pet form of English Eleanor, NELL means "foreign; the other."
Boy/Male
American, British, English, Latin
Just
Surname or Lastname
English
English : from Old English dūst ‘dust’, applied as a nickname, possibly for someone with a dusty complexion or hair (as, for example, a miller), or for a worthless person.North German : possibly a Westphalian habitational name from a farm named with dost ‘bush’, ‘brush’. However, the word also means ‘fine dust’, ‘flour’ and may have been applied as an occupational nickname for a miller. Compare 1.
Surname or Lastname
English
English : of uncertain origin, possibly from an unrecorded late survival of the Old English personal name Tula.South German (Tüll) : from a nickname for someone who was patient, from Middle High German dult ‘patience’; or from a personal name formed with the same word; or from Middle High German tult, dult ‘fair’, ‘festival’ (Bavarian Dult).South German : nickname for a stubborn man, Tull.Altered spelling of German Toll.
Boy/Male
English American
Dusty place; brave soldier.
Male
Hungarian
Hungarian form of Greek Emmanouel, EMÃNUEL means "God is with us."
Boy/Male
English
Dusty Place; Diminutive of Dustin
Boy/Male
Indian
Friend
Surname or Lastname
Swiss German
Swiss German : topographic name for someone who lived by a prominent elm tree, Rust (Old High German ruost), or in northern Germany for someone who lived by a resting place or halt along a route, from Middle Low German ruste ‘rest’.English (chiefly East Anglia) and Scottish : nickname for someone with red hair or a ruddy complexion, from Old English rūst ‘rust’ (from a Germanic root meaning ‘red’).
NULL DUST-SOLUTION
NULL DUST-SOLUTION
Girl/Female
Hindu, Indian
Glowing; Attractive; Loveable; Goddess Lakshmi; One who is Followed
Girl/Female
Welsh
Uncertain origin, but may be derived from the Latin Honorius meaning man of honour, or from the...
Boy/Male
Hindu
Boy/Male
Tamil
Bright as light
Biblical
date palm; date-tree erect
Boy/Male
Hindu, Indian, Kannada
A Crane; Look
Girl/Female
Australian, Dutch, French, German
Peaceful Ruler; Female Version of Frederic; From the Old German Name Frithuric
Boy/Male
Indian, Tamil
Famous Poet Name of Kartik
Boy/Male
Arabic, Hindu, Indian, Kannada, Marathi, Muslim, Tamil, Telugu
Swamy Sri Iyyappan
Boy/Male
Tamil
NULL DUST-SOLUTION
NULL DUST-SOLUTION
NULL DUST-SOLUTION
NULL DUST-SOLUTION
NULL DUST-SOLUTION
a.
Full of lust; excited by lust.
v. t.
To make dusk.
n.
Fine, dry particles of earth or other matter, so comminuted that they may be raised and wafted by the wind; that which is crumbled too minute portions; fine powder; as, clouds of dust; bone dust.
Compar.
Not wanting in any essential quality; complete, entire; perfect; adequate; as, a full narrative; a person of full age; a full stop; a full face; the full moon.
n.
Foul matter arising from degeneration; as, rust on salted meat.
superl.
Filled, covered, or sprinkled with dust; clouded with dust; as, a dusty table; also, reducing to dust.
v. i. / auxiliary
To be obliged; to be necessitated; -- expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to the laws.
v. t.
To free from dust; to brush, wipe, or sweep away dust from; as, to dust a table or a floor.
n.
That which resembles rust in appearance or effects.
n.
Gold dust
v. i. / auxiliary
To be morally required; to be necessary or essential to a certain quality, character, end, or result; as, he must reconsider the matter; he must have been insane.
v. i.
To grow dusk.
adv.
Barely; merely; scarcely; only; by a very small space or time; as, he just missed the train; just too late.
v. t.
To sprinkle with dust.
a.
Full of rust; resembling rust; causing rust; rusty.
v. t.
To cause to contract rust; to corrode with rust; to affect with rust of any kind.
n.
A composition used in making a rust joint. See Rust joint, below.
v. i.
To contract rust; to be or become oxidized.
superl.
Like dust; of the color of dust; as a dusty white.