Dictionary Check: extinction
"extinction" is a valid word!
Scrabble
19
points
Words with Friends
22
points
Definition
noun
no longer active; extinguished
Example:
"the extinction of the volcano"
noun
no longer in existence
Example:
"the extinction of a species"
noun
the reduction of the intensity of radiation as a consequence of absorption and radiation
noun
complete annihilation
Example:
"they think a meteor caused the extinction of the dinosaurs"
noun
a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
noun
the act of extinguishing; causing to stop burning
Example:
"the extinction of the lights"
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