decay

(redirected from decayed)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

decay

 [de-ka´]
1. the gradual decomposition of dead organic matter.
2. the process or stage of decline, as in old age.
tooth decay dental caries.

de·cay

(dĕ-kā'),
1. Destruction of an organic substance by slow combustion or gradual oxidation.
See also: memory.
2.
See also: memory. Synonym(s): putrefaction
3. To deteriorate; to undergo slow combustion or putrefaction.
See also: memory.
4. In dentistry, caries.
See also: memory.
5. psychology loss of information registered by the senses and processed into short-term memory.
See also: memory.
6. Loss of radioactivity with time; spontaneous emission of radiation or charged particles or both from an unstable nucleus.
[L. de, down, + cado, to fall]

decay

/de·cay/ (de-ka´)
1. the decomposition of dead matter.
2. the process of decline, as in aging.

beta decay  disintegration of the nucleus of an unstable radionuclide in which the mass number is unchanged, but atomic number is changed by 1, as a result of emission of a negatively or positively charged (beta) particle.
tooth decay  dental caries.

decay

(dĭ-kā′)
v. de·cayed, de·caying, de·cays
v.intr.
1. Biology To break down into component parts; rot.
2. Physics To disintegrate in a process of radioactive decay or particle decay.
3. Electronics To decrease gradually in magnitude. Used of voltage or current.
4. To decline in health or vigor; waste away.
n.
1.
a. The destruction or decomposition of organic matter as a result of bacterial or fungal action; rot.
b. Rotted matter.
2. Physics
a. See radioactive decay.
b. See particle decay.

de·cay′er n.

decay

[dikā′]
1 a gradual deterioration that accompanies the end of life.
2 a gradual deterioration, usually caused by bacteria and other decomposers, of the body of an organism after death.
3 the process of disintegration of a radioactive substance.

decay

Dentistry Caries, see there Medtalk Putrefaction, see there.

de·cay

(dĕ-kā')
1. Destruction of an organic substance by slow combustion or gradual oxidation.
2. Synonym(s): putrefaction.
3. To deteriorate; to undergo slow combustion or putrefaction.
4. dentistry Caries.
5. psychology Loss of information registered by the senses and processed into short-term memory.
See also: memory
6. Loss of radioactivity over time; spontaneous emission of radiation or charged particles or both from an unstable nucleus.
7. Synonym(s): disintegration.
[L. de, down, + cado, to fall]

decay

see BIODEGRADATION.

decay

the decomposition of dead tissue, mainly by the action of fungi and bacteria.

de·cay

(dĕ-kā')
1. In dentistry, caries.
2. Destruction of an organic substance by slow combustion or gradual oxidation.
3. Synonym(s): putrefaction.
4. To deteriorate; to undergo slow combustion or putrefaction.
[L. de, down, + cado, to fall]

decay,

v to decompose.
decay, dental,
n See caries.
decay product,
n See daughter.
decay, radioactive,
n the disintegration of the nucleus of an unstable nuclide by the spontaneous emission of charged particles and/or photons.
decay, senile,

decay

1. the gradual decomposition of dead organic matter.
2. the process or stage of decline, as in old age.
3. in radioactivity terminology the disintegration of the nucleus of an inactive nuclide by the spontaneous emission of alpha or beta particles. Called also radioactive disintegration. Substances produced by the disintegrations are called daughter (3) compounds.

decay-accelerating factor
a membrane-associated protein found on many cells, including peripheral blood cells, that inhibits the activity of complement.

Patient discussion about decay

Q. what would be the best way to protect my teeth from decaying?i fill pain always in my private parties,what prb whenever i take long with out sex,so i would like the advice from my fewwol

A. i fail to see the connection between teeth and groin pain...about the teeth. it's very very simple- get used to a healthy oral hygiene. brush your teeth in the right way twice a day for at least 6 minute. use floss. go to a dental hygienist, she'll guide you through it.

Q. Whether it`s possible for Bipolar disorder in children?

A. It is possible for children to suffer with bipolar disorder. It is a tricky diagnosis in children I would strongly suggest professional help when dealing with children with bipolar disorder.
I wouldnt trust the diagnosis of a GP, I would suggest getting a referal to a pediatric psychiatrist for a through evaluation and proper treatment

More discussions about decay
References in periodicals archive ?
Relative travel time values were used to identify decay since stress waves travel slower through decayed wood than through sound wood.
Ultrasonic wave travel times transverse to the grain of the decayed beam were incorporated into contour and color gradient plots along the beam profile for three inspection grids using SigmaPlot software.
This transition zone was the region between 24 and 44 inches from the decayed end of the beam.
Compression perpendicular-to-the-grain test samples were removed from the beam starting at 30 inches from the decayed end.
It was expected that decayed wood would filter out higher frequencies and a larger frequency range would allow for larger frequency shifts to be observed.
Among non-Hispanic white children in the same age group, just 14 percent of tooth surfaces were decayed, and over 80 percent of the decayed surfaces were properly filled.
particle, which decayed almost immediately into a quark-antiquark pair.
Between 1980 and 1987 the average dropped from almost five decayed, missing or filled tooth surfaces to three, and those cavities that were found appeared mostly on rough tooth surfaces.
At present the Egyptian government has no plans to remove the second boat, which appears to have decayed more than the first.
One reason for using gaseous tritium, Wilkerson says, is that it makes it easier to account for the effects of the final state of the decayed nucleus (which becomes helium 3).
traveled 437 micrometers and then decayed into a neutral charm particle and a negative mu meson.