extinction
/ɪkˈstɪŋkʃən/ noun
Forms extinctions
- noun The action of making or becoming extinct; annihilation.
- noun (astronomy) The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer.
- noun (pathology) The inability to perceive multiple stimuli simultaneously.
- noun (psychology) The fading of a conditioned response over time if it is not reinforced.
Synonyms
defunctness extermination experimental extinction extinguishing quenching
Etymology
From late Middle English, borrowed from Latin extinctio (“extinction, annihilation”), from extinguere, past participle extinctus (“to extinguish”); see extinguish.
Webster’s 1913
- noun 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.
- noun State of being extinguished or of ceasing to be; destruction; suppression; as, the extinction of life, of a family, of a quarrel, of claim.
Etymology [L. extinctio, exstinction: cf. F. extinction.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “extinction”, CC BY-SA 4.0. Details