extinction

1. no longer active; extinguished

- the extinction of the volcano

Definition categories: state, inaction, inactivity

2. no longer in existence

- the extinction of a species

Similar word(s): defunctness

Definition categories: state, death

3. the reduction of the intensity of radiation as a consequence of absorption and radiation

Definition categories: process, action, activity

4. complete annihilation

- they think a meteor cause the extinction of the dinosaurs

Similar word(s): extermination

5. a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus

Definition categories: thought, conditioning

6. the act of extinguishing; causing to stop burning

- the extinction of the lights

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