extinction
noun
ex·tinc·tion
| \ ik-ˈstiŋ(k)-shən
\
\
Definition of extinction
1
: the act of making extinct or causing to be extinguished
2
: 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