extinction

Plural: extinctions

Noun

• no longer active; extinguished
  • "the extinction of the volcano"
• no longer in existence
  • "the extinction of a species"
• the reduction of the intensity of radiation as a consequence of absorption and radiation
• complete annihilation
  • "they think a meteor cause the extinction of the dinosaurs"
• a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
• the act of extinguishing; causing to stop burning
  • "the extinction of the lights"
• The action of making or becoming extinct; annihilation.
• The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer.
• The inability to perceive multiple stimuli simultaneously.
• The fading of a conditioned response over time if it is not reinforced.

Synonyms

defunctness, experimental extinction, extermination, extinguishing, quenching

Related Words

extinct, extinguish