Simple Definition of extinction
: the state or situation that results when something (such as a plant or animal species) has died out completely
Full Definition of extinction
Examples of extinction
the extinction of all life in the region
the extinction of many old traditions
Mass extinctions of prehistoric animals are known to have occurred.
First Known Use of extinction
EXTINCTION Defined for Kids
Definition of extinction
: the state of being, becoming, or making extinct
Medical Definition of extinction
1: the process of becoming extinct <the extinction of a species>; also : the condition or fact of being extinct
2: the process of eliminating or reducing a conditioned response by not reinforcing it
Learn More about extinction
Thesaurus: All synonyms and antonyms for "extinction" Medical Dictionary: Definition of "extinction" Spanish Central: Translation of "extinction" Nglish: Translation of "extinction" for Spanish speakers Britannica English: Translation of "extinction" for Arabic speakers Britannica.com: Encyclopedia article about "extinction"
Seen and Heard
What made you want to look up extinction? Please tell us where you read or heard it (including the quote, if possible).