extinction
英 [?k'st??(k)?(?)n; ek-]
美[?k'st??k??n]
- n. 消失；消滅；廢止
英英釋意
- 1. no longer in existence;
- "the extinction of a species"
- 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 no longer active; extinguished;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"
- 5. a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
- 6. the act of extinguishing; causing to stop burning;
- "the extinction of the lights"