- extinction, defunctness - no longer in existence; "the extinction of a species"
--1 is a kind of death
- extinction - no longer active; extinguished; "the extinction of the volcano"
--2 is a kind of inaction, inactivity, inactiveness
- extinction - the reduction of the intensity of radiation as a consequence of absorption and radiation
--3 is a kind of natural process, natural action, action, activity
--3 has part: absorption; scattering- extinction, extermination - complete annihilation; "they think a meteor cause the extinction of the dinosaurs"
--4 is a kind of annihilation, disintegration
Derived form: verb extinguish4 - extinction, experimental extinction - a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
--5 is a kind of conditioning
- extinction, extinguishing, quenching - the act of extinguishing; causing to stop burning; "the extinction of the lights"
--6 is a kind of termination, ending, conclusion
Derived forms: verb extinguish2, verb extinguish1 - extinction - the reduction of the intensity of radiation as a consequence of absorption and radiation