• Link Centre - Search Engine and Internet Directory

Dictionary definition for: Extinction

1. (n) no longer in existence; "the extinction of a species"

2. (n) no longer active; extinguished; "the extinction of the volcano"

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

4. (n) complete annihilation; "they think a meteor cause the extinction of the dinosaurs"

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

6. (n) the act of extinguishing; causing to stop burning; "the extinction of the lights"

WordNet 2.1 Copyright Princeton University. All rights reserved.