Hypertext Webster Gateway: "extinction"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Extinction \Ex*tinc"tion\, n. [L. extinctio, exstinction: cf. F.
extinction.]
1. The act of extinguishing or making extinct; a putting an
end to; the act of putting out or destroying light, fire,
life, activity, influence, etc.
2. State of being extinguished or of ceasing to be;
destruction; suppression; as, the extinction of life, of a
family, of a quarrel, of claim.
From WordNet (r) 1.7 (wn)
extinction
n 1: no longer in existence; "the extinction of a species" [syn:
{defunctness}]
2: no longer active; extinguished; "the extinction of the
volcano"
3: the reduction of the intensity of radiation as a consequence
of absorption and radiation
4: complete annihilation; "they think a meteor cause the
extinction of the dinosaurs" [syn: {extermination}]
5: a learning process in which the reinforcer is removed and a
conditioned response becomes independent of the
conditioned stimulus [syn: {experimental extinction}]
6: the act of extinguishing; causing to stop burning; "the
extinction of the lights" [syn: {extinguishing}, {quenching}]
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