Definitions for: Extinction


[n] the act of extinguishing; causing to stop burning; "the extinction of the lights"
[n] a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
[n] complete annihilation; "they think a meteor cause the extinction of the dinosaurs"
[n] the reduction of the intensity of radiation as a consequence of absorption and radiation
[n] no longer in existence; "the extinction of a species"
[n] no longer active; extinguished; "the extinction of the volcano"



Webster (1913) Definition: 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.

Synonyms: defunctness, experimental extinction, extermination, extinguishing, quenching

See Also: absorption, action, activity, annihilation, conclusion, conditioning, death, disintegration, ending, inaction, inactiveness, inactivity, natural action, natural process, scattering, termination

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