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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

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).

The Dream Encyclopedia, Second Edition © 2009 Visible Ink Press®. All rights reserved.

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

brown rot

A fungus that destroys wood cellulose, leaving a brown powdery residue behind.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

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.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

decay

The gradual reduction of strength of a signal or charge.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
As was mentioned we consider the hypothesis that a dark energy depends on time, [[rho].sub.de] = [[rho].sub.de](t), and decays with the increasing time t to [[rho].sub.bare]: [[rho].sub.de](t) [right arrow] [[rho].sub.bare] [not equal to] 0 as t [right arrow] [infinity].
Physicists say that if a special kind of radioactive decay called "neutrinoless double-beta decay" is observed, it would prove two things - one, that in certain circumstances more matter is in fact created than antimatter; and two, neutrinos (which are virtually massless particles produced during radioactive decay) can behave as their own antiparticles.
A snack culture across South Wales is leaving hundreds of five-year-olds in some areas with dental decay, a leading dentist is warning.
These conditions include artificially increasing the fluence of neutrons (while keeping the 0.89 nm fluence fixed), varying the length of time we observe neutron decays, ramping the magnetic field to remove marginally trapped neutrons, and numerous tests of the electronics and data acquisition systems (DAQ).
Radioactive beryllium-7 atoms locked inside molecular cages decay extraordinarily quickly, Japanese researchers have found.
If a 100-gram sample of nitrogen-16 decays to 12.5 grams in 21.39 seconds, what is its half-life?
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 asymptotic behavior of the even-cosine series windows presented here reveals that the series has an asymptotic decay 6 dB/octave higher than the odd-cosine series.
A related example is charm semileptonic decays with a missing neutrino.
Neutron decays are observed by detecting the up to 0.78 MeV [beta] particles from neutron decay.