n.
1.no longer in existence
2.no longer active
3.the reduction of the intensity of radiation as a consequence of absorption and radiation
4.complete annihilation
5.a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
6.the act of extinguishing
Idiom of the Day
come to mind
to enter into one's consciousness
Nothing came to mind when I tried to remember the names of the actors.