decay

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Related to decays: radioactive decay

decay

1. decomposition, as of vegetable matter
2. rotten or decayed matter
3. Physics
b. a spontaneous transformation of an elementary particle into two or more different particles
c. of an excited atom or molecule, losing energy by the spontaneous emission of photons
4. Physics a gradual decrease of a stored charge, magnetic flux, current, etc., when the source of energy has been removed
5. Music the fading away of a note

What does it mean when you dream about decay?

Decay may symbolize the degradation of a situation. More positively, it represents the death of an old situation before rebirth into a new state. Other associations come from such common idioms as “rotten apple.” (See also Maggots).

decay

[di′kā]
(geochemistry)
(materials)
To undergo decomposition.
(nuclear physics)
(oceanography)
In ocean-wave studies, the loss of energy from wind-generated ocean waves after they have ceased to be acted on by the wind; this process is accompanied by an increase in length and a decrease in height of the wave.
(physics)
Gradual reduction in the magnitude of a quantity, as of current, magnetic flux, a stored charge, or phosphorescence.

brown rot

A fungus that destroys wood cellulose, leaving a brown powdery residue behind.

decay

[Nuclear physics] An automatic conversion which is applied to most array-valued expressions in C; they "decay into" pointer-valued expressions pointing to the array's first element. This term is not used in the official standard for the language.

decay

The gradual reduction of strength of a signal or charge.
References in periodicals archive ?
If neutrinoless double-beta decay is observed, it helps solve a couple of problems," Philip Barbeau, an assistant professor of physics at Duke University who wrote a commentary on the Nature paper, (http://www.
These decays are further suppressed in the SM and allow to test the flavour structure of nature.
After the beam has been turned off, the neutron decay events are recorded.
Tsutomu Ohtsuki of Tohoku University in Sendai and his colleagues recorded a nearly 1 percent hike in the decay rate of beryllium-7 atoms that were each trapped inside a spherical shell-like, 60-carbon molecule known as a buckminsterfullerene, or buckyball.
Although approximately 20 percent of the poles contained some evidence of visible decay prior to treatment, only one decay fungus was isolated from these poles.
The study of B decays is really the study of new physics," he says.
This article describes measurements of angular-correlation coefficients in the decay of free neutrons with the superconducting spectrometer PERKEO II.
One explanation for the extra instances of the decays may lie in an alternative theory called supersymmetry, which posits yet-undiscovered particles that could account for the disintegrations.
ud] determination from neutron [beta]-decay and from high quark generation decay.
Researchers didn't have to wait anywhere near that long to detect the tell-tale alpha decays because the huge number of bismuth atoms in even a single bite-size bolometer crystal guarantees that some atoms will break down in a matter of days, if they break down at all, de Marcillac says.
The experiment uses an electromagnetic spectrometer in combination with two large-area segmented silicon detectors to detect the proton and electron from the decay in coincidence, with 4[pi] acceptance for both particles.