| DAF | Decay Accelerating Factor |
|---|---|
| DAF | decay-accelerating factor; delayed auditory feedback; drug-adulterated food |
| DK | dark; decay; diabetic ketoacidosis; diet kitchen; diseased kidney; dog kidney [cells] |
| FID | flame ionization detector; free induction decay; fungal immunodiffusion |
| MTDT | modified tone decay test |
| BBTD | Baby Bottle Tooth Decay |
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| DAF, CD55 | Decay Accelerating Factor |
| DAF | Decay accelerating factor |
| DAS | Decay associated spectra |
| FID | Free Induction Decay |
| decay | 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. "Ill fares the land, to hastening ills a prey, Where wealth accumulates and men decay." (Goldsmith) Origin: OF. Decaeir, dechaer, decheoir, F. Dechoir, to decline, fall, become less; L. De- + cadere to fall. See Chance. 1. 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. "Perhaps my God, though he be far before, May turn, and take me by the hand, and more - May strengthen my decays." (Herbert) "His [Johnson's] failure was not to be ascribed to intellectual decay." (Macaulay) "Which has caused the decay of the consonants to follow somewhat different laws." (James Byrne) 2. Destruction; death. 3. Cause of decay. "He that plots to be the only figure among ciphers, is the decay of the whole age." (Bacon) Synonym: Decline, consumption. See Decline. Source: Websters Dictionary (01 Mar 1998) |
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| decay accelerating factor | <biochemistry, protein> Plasma protein that regulates complement cascade by blocking the formation of the C3bBb complex (the C3 convertase of the alternate pathway). Widely distributed in tissues but deficient in paroxysmal nocturnal haemoglobinuria. (18 Nov 1997) |
| decay constant | <physics, radiobiology> The fraction of the amount of a radionuclide that undergoes transition per unit time. Formally: Lamda=dP/dt Where dP is the probability of a given nucleus undergoing spontaneous nuclear transition in the time interval dt. (16 Dec 1997) |
| decay modes | <radiobiology> Different pathways for decay of radioactive nuclei. The decay modes for a given unstable state can include beta emission (negative = electron, positive = positron), electron capture, alpha emission, fission, and gamma emission. (13 Nov 1997) |
| decay theory | A theory of forgetting based on the premise that an engram or memory trace dissipates progressively with time during the interval when it is not activated. (05 Mar 2000) |
| decayed | Fallen, as to physical or social condition; affected with decay; rotten; as, decayed vegetation or vegetables; a decayed fortune or gentleman. Decay"edness. Source: Websters Dictionary (01 Mar 1998) |
| radioactive decay | <physics> The process by which a spontaneous change in nuclear state takes place. This process is accompanied by the emission of energy in various specific combinations of electromagnetic and corpuscular radiation and neutrinos. (16 Dec 1997) |
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| tone decay test | The sounding of a continuous tone at threshold for 1 min; if the intensity must be increased by more than 5 dB for continued perception, it may be a sign of retrocochlear damage. (05 Mar 2000) |
| exponential decay | <epidemiology> A decline in which the rate of decay is always proportional to the amount of material remaining; the constant of proportionality is the rate constant. (05 Dec 1998) |
| free induction decay | In magnetic resonance imaging, the decay curve that is detected by the radiofrequency coil after the application of an excitation pulse, without additional pulses (free). (05 Mar 2000) |
| decay |
the process of gradually becoming inferior a gradual decrease; as of stored charge or current the organic phenomenon of rotting disintegrate: lose a stored charge, magnetic flux, or current; "the particles disintegrated during the nuclear fission process" an inferior state resulting from the process of decaying; "the corpse was in an advanced state of decay"; "the house had fallen into a serious state of decay and disrepair" fall into decay or ruin; "The unoccupied house started to decay" the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation undergo decay or decomposition; "The body started to decay and needed to be cremated"
Ãâó: wordnet.princeton.edu/perl/webwn
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| decay |
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 wave length and a decrease in wave height.
Ãâó: amsglossary.allenpress.com/glossary/browse
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| decay product |
The isotope produced by the decay of a radioactive isotope.
Ãâó: library.thinkquest.org/3471/glossary_body.html
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| decay |
The latter portion (which can be described in milliseconds) of a sound, such as a musical note, of finite duration, where the amplitude (intensity) of that portion is rapidly declining to zero, or if the entire sound other than the attack qv has a uniformly declining amplitude, such larger portion.
Ãâó: members.aol.com/ajaynejr/vidglos2.htm
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| decay |
The rate at which the volume of a musical note decreases from its peak value to a mid-range volume called the sustain level. See Sustain.
Ãâó: members.tripod.com/~rvbelzen/c128sg/glossary.htm
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| decay | the organic phenomenon of rotting |
|---|---|
| decay | a gradual decrease |
| decay | the process of gradually becoming inferior |
| decay | the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation |
| decay | an inferior state resulting from the process of decaying |
| decay | fall into decay or ruin |
| decay | lose a stored charge, magnetic flux, or current |
| decay | undergo decay or decomposition |
| decay | liable to decay or spoil or become putrid |
| decay | deteriorated by decay or rot |
| decay | damaged by decay |
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