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Topics referred to by the same term
Look up decay in Wiktionary, the free dictionary. Decay may refer to: Bit decay, in computing Decay time (fall time), in electronics Distance decay, in geography
Decay
Emissions from unstable atomic nuclei
Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable
Radioactive_decay
Type of radioactive decay
In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron)
Beta_decay
Hypothetical particle decay process of a proton
Proton decay is the key process to test the stability of matter and baryon number conservation and has long been a subject of both theoretical and experimental
Proton_decay
Decrease in value at a rate proportional to the current value
A quantity is subject to exponential decay if it decreases at a rate proportional to its current value. Symbolically, this process can be expressed by
Exponential_decay
Type of radioactive decay
Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus). The parent nucleus transforms
Alpha_decay
Topics referred to by the same term
neutron decay may refer to: Neutron emission by an atomic nucleus Free neutron decay Beta decay of a neutron inside an atomic nucleus Baryon decay, as predicted
Neutron_decay
Penetrating form of electromagnetic radiation
electromagnetic radiation arising from high-energy interactions like the radioactive decay of atomic nuclei or astronomical events like solar flares. Lower energy
Gamma_ray
Decline in online platform quality
Enshittification, also known as platform decay, is a process in which two-sided online products and services decline in quality over time. Initially,
Enshittification
Deformation of teeth due to acids produced by bacteria
Tooth decay, also known as caries (lit. 'rottenness', from Latin), is the breakdown of teeth due to acids produced by bacteria. The resulting dental cavities
Tooth_decay
Series of radioactive decays
In nuclear science a decay chain refers to the predictable series of radioactive disintegrations undergone by the nuclei of certain unstable chemical
Decay_chain
Type of radioactive decay
Positron emission, beta plus decay, or β+ decay is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is
Positron_emission
Ionizing radiation
emitted by the radioactive decay of an atomic nucleus, known as beta decay. There are two forms of beta decay, β− decay and β+ decay, which produce electrons
Beta_particle
2012 compilation album by Com Truise
In Decay is a compilation album by the American musician Seth Haley, known professionally as Com Truise. It was released on July 16, 2012, through the
In_Decay
2022 single by My Chemical Romance
"The Foundations of Decay" is a song by the American rock band My Chemical Romance. It was surprise-released as a single on May 12, 2022, by Reprise Records
The_Foundations_of_Decay
Interaction between subatomic particles
between subatomic particles that is responsible for the radioactive beta decay of atoms: The weak interaction participates in nuclear fission and nuclear
Weak_interaction
1989 studio album by Overkill
The Years of Decay is the fourth studio album by thrash metal band Overkill, released on October 13, 1989, through Atlantic and Megaforce Records. It
The_Years_of_Decay
Sociological process affecting cities
Urban decay (also known as urban rot, urban death or urban blight) is the sociological process by which a previously functioning city, or part of a city
Urban_decay
Heat generated from radioactive decay
Decay heat is the heat released as a result of radioactive decay. This heat is produced as an effect of radiation on materials: the energy of the alpha
Decay_heat
Remaining nuclide left over from radioactive decay
decay. Radioactive decay often proceeds via a sequence of steps (decay chain). For example, 238U decays to 234Th which decays to 234mPa which decays,
Decay_product
Process that leads to gradual decrease of the distance between two orbiting bodies
Orbital decay is a gradual decrease of the distance between two orbiting bodies at their closest approach (the periapsis) over many orbital periods. These
Orbital_decay
Time for exponential decay to remove half of a quantity
nuclear physics to describe how quickly unstable atoms undergo radioactive decay or how long stable atoms survive. The term is also used more generally to
Half-life
Hypothetical vacuum, less stable than true vacuum
could eventually decay to the more stable one, an event known as false vacuum decay. The most common suggestion of how such a decay might happen in our
False_vacuum
Decay of a neutron when outside a nucleus
embedded in a stable nuclide, neutrons have not been observed to decay. Free neutrons decay with a mean lifetime of 878.4±0.5 s (nearly 15 minutes), which
Free_neutron_decay
2001 video game expansion-pack
Half-Life: Decay is a multiplayer-only expansion pack for Valve's first-person shooter Half-Life. Developed by Gearbox Software and published by Sierra
Half-Life:_Decay
Type of radioactive decay
In nuclear physics, double beta decay is a type of radioactive decay in which two neutrons are simultaneously transformed into two protons, or vice versa
Double_beta_decay
Subatomic particle
between the muon and the set of its decay products is small, providing few kinetic degrees of freedom for decay. Muon decay always produces an electron (or
Muon
Change of sound over time
most common envelope generator is controlled with four parameters: attack, decay, sustain and release (ADSR). The envelope generator was created by the American
Envelope_(music)
Spontaneous breakdown of an unstable subatomic particle into other particles
In particle physics, particle decay is the spontaneous process of one unstable subatomic particle transforming into multiple other particles. The particles
Particle_decay
Subatomic particle; lightest meson
charged pions π+ and π− decaying after a mean lifetime of 26.033 nanoseconds (2.6033×10−8 seconds), and the neutral pion π0 decaying after a much shorter
Pion
Video game series
State of Decay is a series of third-person survival horror video games. The series was created by Undead Labs and published by Xbox Game Studios. To date
State_of_Decay
2018 video game
State of Decay 2 is a 2018 action-adventure survival video game developed by Undead Labs and published by Xbox Game Studios. The game is a sequel to State
State_of_Decay_2
8th episode of the 1st season of Westworld
"Trace Decay" is the eighth episode in the first season of the HBO science fiction western thriller television series Westworld. The episode aired on
Trace_Decay
Energy change of a nucleus after radioactive decay
The decay energy is the energy change of a nucleus having undergone a radioactive decay. Radioactive decay is the process in which an unstable atomic nucleus
Decay_energy
1891 essay by Oscar Wilde
"The Decay of Lying – An Observation" is an essay by Oscar Wilde, included in his collection of essays titled Intentions, published in 1891. This version
The_Decay_of_Lying
Process of breaking down organic matter
process of decomposition in vertebrate animals: fresh, bloat, active decay, advanced decay, and dry/remains. The general stages of decomposition are coupled
Decomposition
Buddhist meditation of a decaying corpse
The contemplation of the nine stages of a decaying corpse is a Buddhist meditational practice in which the practitioner imagines or observes the gradual
Nine_stages_of_decay
Sociological effect
Distance decay is a geographical term which describes the effect of distance on cultural or spatial interactions. The distance decay effect states that
Distance_decay
Optical decay is process of relaxation of excitation of an excited quantum system, usually due to the spontaneous emission of a photon or a phonon. Optical
Optical_decay
Isotope of hydrogen with two neutrons
used for radiometric dating of water and wine. Tritium decays into helium-3 by beta-minus decay as shown in this nuclear equation: releasing 18.6 keV of
Tritium
Fraction of total particles in a sample which decay by a given mode
for a decay is the fraction of particles which decay by an individual decay mode or with respect to the total number of particles which decay. It applies
Branching_fraction
Any species of fungus that digests moist wood, causing it to rot
A wood-decay or xylophagous fungus is any species of fungus that digests moist wood, causing it to rot. Some species of wood-decay fungi attack dead wood
Wood-decay_fungus
Accumulation of data corruption on a storage device over time
failures in a data storage device. It is also referred to as data decay, data rot, digital decay, or bit rot. This results in a decline in data quality over
Data_degradation
2025 American film
Round the Decay is a 2025 American independent horror film directed, written, and produced by Adam Newman. The film follows a young woman who returns
Round_the_Decay
Radioactive decay by emitting a nucleus
Cluster decay, also known as heavy particle radioactivity, is a rare type of radioactive decay in which an unstable atomic nucleus emits a small cluster
Cluster_decay
American cosmetics line
Urban Decay, an American cosmetics brand headquartered in Newport Beach, California, is a subsidiary of French cosmetics company L'Oréal. Current products
Urban_Decay_(cosmetics)
Political theory
Political decay is a political theory, originally described in 1965 by Samuel P. Huntington, which describes how chaos and disorder can arise from social
Political_decay
2022 studio album by The Devil Wears Prada
Color Decay is the eighth studio album by American metalcore band The Devil Wears Prada. It was released on September 16, 2022, through Solid State Records
Color_Decay
Physical phenomenon
In nuclear physics, a beta decay transition is the change in state of an atomic nucleus undergoing beta decay. A beta particle and a neutrino are emitted
Beta_decay_transition
Process in which a proton-rich nuclide absorbs an inner atomic electron
{\displaystyle _{e}} Since this single emitted neutrino carries the entire decay energy, it has this single characteristic energy. Similarly, the momentum
Electron_capture
Elementary particle involved with rest mass
parity, no electric charge, and no color charge. It is also very unstable, decaying into other particles almost immediately upon generation. The Higgs field
Higgs_boson
English post-punk band
UK Decay are an English post-punk band based in Luton. UK Decay was born from another Luton band called the Resiztors, who had formed in 1978. The Resiztors'
UK_Decay
Graphical presentation of transitions occurring in decay of a radioactive substance
The decay scheme of a radioactive substance is a graphical presentation of all the transitions occurring in a decay, and of their relationships. Examples
Decay_scheme
Elimination of mRNA with premature stop codons in eukaryotes
Nonsense-mediated mRNA decay (NMD) is a surveillance pathway that likely exists in all eukaryotes. Its main function is to reduce errors in gene expression
Nonsense-mediated_decay
2020 studio album by the Acacia Strain
Slow Decay is the tenth studio album by American metalcore band the Acacia Strain. It was released on July 24, 2020, through Rise Records, though originally
Slow_Decay
Perceived decay of standards in a society
French, and entered English soon afterwards. It bore the neutral meaning of decay, decrease, or decline until the late 19th century, when the influence of
Decadence
Method for determining the age of objects
of 14 C it contains begins to decrease as the 14 C undergoes radioactive decay. Measuring the amount of 14 C in a sample from a dead plant or animal, such
Radiocarbon_dating
Video game
Core Decay is an upcoming indie first-person action role-playing video game developed by Ivar Hill and Slipgate Ironworks, and published by 3D Realms
Core_Decay
Topics referred to by the same term
B+ decay may refer to: Positron emission (beta plus decay) B meson decay Particle decay Decay (disambiguation) This disambiguation page lists articles
B+_decay
Science fiction book series by Martha Wells
"Rapport" "Home" Fugitive Telemetry Network Effect System Collapse Platform Decay A scientific expedition on an alien planet goes awry when one of its members
The_Murderbot_Diaries
Chemical element with atomic number 86 (Rn)
radioactive decay chain of 238U, also known as the uranium series, which slowly decays into a variety of radioactive nuclides and eventually decays into stable
Radon
Set of nuclides that cannot undergo beta decay
Beta-decay stable isobars are the set of nuclides which cannot undergo beta decay, that is, the transformation of a neutron to a proton or a proton to
Beta-decay_stable_isobars
Ionizing radiation particle of two protons and two neutrons
of a helium-4 atom. They are generally produced in the process of alpha decay but may also be produced in other ways. Alpha particles are named after
Alpha_particle
Isotope of bismuth
the longest known half-life of any nuclide that undergoes α-decay (alpha decay); the decay product is thallium-205. It has 83 protons and a magic number
Bismuth-209
1982 album by Robyn Hitchcock
Groovy Decay was the second solo album by Robyn Hitchcock, released in 1982. His backing band for the record featured Sara Lee of Gang of Four on bass
Groovy_Decay
2020 compilation album by Com Truise
In Decay, Too is a compilation album by American electronic musician Seth Haley's project Com Truise, released on December 4, 2020, by the independent
In_Decay,_Too
2010 studio album by Immolation
Majesty and Decay is Immolation's eighth full-length album, released March 9, 2010. It was recorded at New York's Millbrook Sound Studios and was produced
Majesty_and_Decay
Measurement of dental health
The decay-missing-filled (DMF) index or decayed, missing, and filled teeth (DMFT) index is one of the most common methods in oral epidemiology for assessing
Decay-missing-filled_index
1976 studio album by Michael Nyman
Decay Music is the 1976 debut album by Michael Nyman, released on Brian Eno's Obscure Records music label. The two works on the album, "1-100" (composed
Decay_Music
Subatomic particle with no charge
particles; each is composed of three quarks. A free neutron spontaneously decays to a proton, an electron, and an antineutrino, with a mean lifetime of about
Neutron
Nuclear reaction between an electron antineutrino and proton
In nuclear and particle physics, inverse beta decay, commonly abbreviated to IBD, is a nuclear reaction involving an electron antineutrino scattering
Inverse_beta_decay
Photoconductance decay or Photoconductivity decay (PCD or PC), is a non-destructive analytical technique used to measure the lifetime of minority charge
Photoconductance_decay
Chemical element with atomic number 88 (Ra)
stable isotope being radium-226 with a half-life of 1,600 years. When radium decays, it emits ionizing radiation as a by-product, which can excite fluorescent
Radium
Chemical element with atomic number 90 (Th)
0 billion years, or about the age of the universe; it decays very slowly via alpha decay, starting a decay chain named the thorium series that ends at stable
Thorium
Plant defense mechanism against wood-decay pathogens
Compartmentalization of decay in trees (CODIT) is a model developed by plant pathologist Alex Shigo after studying wood-decay fungus patterns. In keeping
Compartmentalization of decay in trees
Compartmentalization_of_decay_in_trees
Chemical element with atomic number 118 (Og)
have so far been observed to predominantly decay via decay modes that are caused by such repulsion: alpha decay and spontaneous fission. Almost all alpha
Oganesson
Decay correction is a method of estimating the amount of radioactive decay at some set time before it was actually measured. Researchers often want to
Decay_correction
Physical constant
In particle physics, the pion decay constant is the square root of the coefficient in front of the kinetic term for the pion in the low-energy effective
Pion_decay_constant
American rock band
Independent Label Group) on March 26, 2013. The album's debut single, "Decay", was released to radio and retail outlets on January 22, 2013. It peaked
Sevendust
Creating chemicals by radioactive decay
In chemistry, the decay technique is a method to generate chemical species such as radicals, carbocations, and other potentially unstable covalent structures
Decay_technique
Safety system in nuclear reactors
shutdown of a nuclear reactor, the core continues to produce decay heat due to the nuclear decay of fission products created during reactor operation. In
Residual_heat_removal_system
Nuclear reaction splitting an atom into multiple parts
very large amount of energy even by the energetic standards of radioactive decay. Nuclear fission was discovered by chemists Otto Hahn and Fritz Strassmann
Nuclear_fission
Atom that has excess nuclear energy, making it unstable
unstable and known to undergo radioactive decay into a different nuclide, which may be another radionuclide (see decay chain) or be stable. Radiation emitted
Radionuclide
Isotope of uranium
nucleus (one per beta decay), resulting in a large detectable geoneutrino signal when decays occur within the Earth. The decay of 238U to daughter isotopes
Uranium-238
2012 British film
Decay is a 2012 British independent horror film written and directed by Luke Thompson (of the University of Manchester), set at the Large Hadron Collider
Decay_(2012_film)
Topics referred to by the same term
Decay may refer to: Truth Decay (T Bone Burnett album), 1980 Truth Decay (Hypnogaja album), 2009 Truth Decay (You Me at Six album), 2023 Truth Decay (book)
Truth_Decay
Hypothesis about the neurophysiology of memory
The Decay theory is a theory that proposes that memory fades due to the mere passage of time. Information is therefore less available for later retrieval
Decay_theory
Elementary particle with extremely low mass
neutrinos. Neutrinos are created by various radioactive decays. These include the beta decay of atomic nuclei or hadrons and natural nuclear reactions
Neutrino
2002 film by Pat O'Neill
The Decay of Fiction is a 2002 American 35mm part color and part black-and-white experimental film noir project directed by independent filmmaker and
The_Decay_of_Fiction
half-life of 3.8215 days, which decays into 218 Po. Six isotopes of radon, 217-222Rn, occur in trace quantities in nature as decay products of, respectively
Isotopes_of_radon
Remains of human-made architecture
commentaries on the triumph of Christianity and the general sense of the world's decay, in what was assumed to be its last age, before the Second Coming.[citation
Ruins
2025 studio album by Lowheaven
Ritual Decay is the debut studio album by Canadian post-metal band Lowheaven. It was released on August 29, 2025, via MNRK Music Group in LP, CD and digital
Ritual_Decay
Growth of quantities at rate proportional to the current amount
exponential decay instead. In the case of a discrete domain of definition with equal intervals, it is also called geometric growth or geometric decay since
Exponential_growth
2013 video game
State of Decay is a 2013 action-adventure survival video game developed by Undead Labs and published by Microsoft Studios. The game combines elements
State_of_Decay_(video_game)
Ecosystem decay is a term coined by Thomas Lovejoy to define the process of which species become extinct locally based on habitat fragmentation. This
Ecosystem_decay
Novel by Yukio Mishima
The Decay of the Angel (天人五衰, Tennin Gosui) is a novel by Yukio Mishima and is the fourth and last in his Sea of Fertility tetralogy. It was published
The_Decay_of_the_Angel
Hadron decay process into both leptons and hadrons
In particle physics the semileptonic decay of a hadron is a decay caused by the weak force in which one lepton (and the corresponding neutrino) is produced
Semileptonic_decay
The tone decay test (also known as the threshold tone decay test or TTDT) is used in audiology to detect and measure auditory fatigue. It was developed
Tone_decay_test
Metastable excited state of a nuclide
1000 times longer than the half-lives of the excited nuclear states that decay with a "prompt" half-life (ordinarily on the order of 10−12 seconds). Some
Nuclear_isomer
On transmutation of elements during radioactive decay
physics, is a rule governing the transmutation of elements during radioactive decay. It is named after Frederick Soddy and Kazimierz Fajans, who independently
Radioactive displacement law of Fajans and Soddy
Radioactive_displacement_law_of_Fajans_and_Soddy
DECAY
DECAY
Surname or Lastname
Irish or Scottish
Irish or Scottish : reduced form of McFaul.English : variant of Fall 2.South German : from a byname for a weakling, from Middle High German vūl, voul ‘frail’, ‘decayed’, ‘foul’, ‘weak’. Later the term took on the meaning ‘lazy’ and in some cases the surname may have arisen from this sense.
Girl/Female
Arabic, Hindu, Indian, Marathi, Sanskrit
Old; Decayed; Female Offspring
DECAY
DECAY
Boy/Male
Hindu, Indian, Marathi, Punjabi, Sikh
Mighty Victorious
Boy/Male
Indian, Sanskrit
The Lord of Heaven
Girl/Female
Hindu, Indian, Kannada
Flute of Lord Krishna
Boy/Male
British, English, Jamaican
From the City; City Dweller; Courteous
Girl/Female
Indian, Tamil
Beauty; Goddess
Boy/Male
Hindu, Indian
Big Elephant
Girl/Female
Hindu, Indian
Lit by Lamps
Girl/Female
Hindi
King of the gods.
Boy/Male
Indian, Punjabi, Sikh
Meditating the Lord's Name
Surname or Lastname
English
English : variant of Pridmore.
DECAY
DECAY
DECAY
DECAY
DECAY
a.
Fallen, as to physical or social condition; affected with decay; rotten; as, decayed vegetation or vegetables; a decayed fortune or gentleman.
v. i. & t.
To talk in a weak and silly manner, like one whose faculties are decayed; to prate; to prattle.
v. i.
To fall to ruins; to go to ruin; to become decayed or dilapidated; to perish.
imp. & p. p.
of Decay
v. t.
To cause to decay; to impair.
n.
To bring to ruin; to cause to fall to pieces and decay; to make to perish; to bring to destruction; to bring to poverty or bankruptcy; to impair seriously; to damage essentially; to overthrow.
n.
Gradual failure of health, strength, soundness, prosperity, or of any species of excellence or perfection; tendency toward dissolution or extinction; corruption; rottenness; decline; deterioration; as, the decay of the body; the decay of virtue; the decay of the Roman empire; a castle in decay.
n.
Cause of decay.
n.
A disease or decay in fruits, leaves, or wood, supposed to be caused by minute fungi. See Bitter rot, Black rot, etc., below.
n.
A brown amorphous substance found in decaying vegetation. Cf. Humin.
n.
Any plant growing on decayed animal or vegetable matter, as most fungi and some flowering plants with no green color, as the Indian pipe.
n.
A causer of decay.
p. pr. & vb. n.
of Decay
n.
That which is fallen down and become worthless from injury or decay; as, his mind is a ruin; especially, in the plural, the remains of a destroyed, dilapidated, or desolate house, fortress, city, or the like.
n.
That which promotes injury, decay, or destruction.
a.
Feeding or growing upon decaying animal or vegetable matter; pertaining to a saprophyte or the saprophytes.
v. i.
To pass gradually from a sound, prosperous, or perfect state, to one of imperfection, adversity, or dissolution; to waste away; to decline; to fail; to become weak, corrupt, or disintegrated; to rot; to perish; as, a tree decays; fortunes decay; hopes decay.
n.
One of a tribe of beetles which feed upon decaying animal and vegetable substances; a carrion beetle.
a.
Having rotted; putrid; decayed; as, a rotten apple; rotten meat.
n.
One who prates in a weak and silly manner, like one whose faculties are decayed.