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Definitions of extinction
  1. noun
    complete annihilation
    "they think a meteor cause the extinction of the dinosaurs"

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  2. noun
    the act of extinguishing; causing to stop burning
    "the extinction of the lights"
  3. noun
    no longer in existence
    "the extinction of a species"

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  4. noun
    a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
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  5. noun
    no longer active; extinguished
    "the extinction of the volcano"
  6. noun
    the reduction of the intensity of radiation as a consequence of absorption and radiation
Definition that contains extinction
  • ruined doomed to extinction
  • sunk doomed to extinction
  • blackout darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
  • undone doomed to extinction
  • endangered (of flora or fauna) in imminent danger of extinction
  • enlightenment (Hinduism and Buddhism) the beatitude that transcends the cycle of reincarnation; characterized by the extinction of desire and suffering and individual consciousness
  • nirvana (Hinduism and Buddhism) the beatitude that transcends the cycle of reincarnation; characterized by the extinction of desire and suffering and individual consciousness
  • brownout darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
  • diceros bicornis African rhino; in danger of extinction
  • endangered species a species whose numbers are so small that the species is at risk of extinction
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