extinction

Noun

• the act of extinguishing; causing to stop burning
  • the extinction of the lights
    

• a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus

• complete annihilation
  • they think a meteor cause the extinction of the dinosaurs
    

• the reduction of the intensity of radiation as a consequence of absorption and radiation

• no longer in existence
  • the extinction of a species
    

• no longer active; extinguished
  • the extinction of the volcano
    

Related words

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