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extinction

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extinction

Main Entry:: ex·tinc·tion
Pronunciation:: \ik-ˈstiŋ(k)-shən\
Function:: noun
Date:: 15th century

1: the act of making extinct or causing to be extinguished2: the condition or fact of being extinct or extinguished ; also : the process of becoming extinct <extinction of a species>3: the process of eliminating or reducing a conditioned response by not reinforcing it

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