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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 ex·tinc·tion /ɪkˈstɪŋ(k)ʃən/
 滅絕,絕種,消滅,熄滅

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 ex·tinc·tion /ɪkˈstɪŋ(k)ʃən/ 名詞
 消光,熄滅,消滅,消退,消光係數,消除,衰減,自屏

From: Webster's Revised Unabridged Dictionary (1913)

 Ex·tinc·tion n.
 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) 2.0

 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      2: no longer active; extinguished; "the extinction of the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 conditioning 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]