Quenched; put out; destroyed. Specifically: In pharmacy, rendered indistinguishable through fine subdivision: noting the condition produced by triturating mercury with lard until the metallic globules are no longer visible.

In the petrographical investigation of rocks and minerals with a polarizing microscope, noting the complete darkening of a transparent section of a bire-fracting mineral when its axes of elasticity coincide with the planes of the crossed Nicol prisms.

adjective. caused to die out because of the absence or withdrawal of reinforcement; -- of a conditioned response.

adjective. no longer burning; -- of a fire.

adjective. no longer existing; -- of species.

verb. Simple past tense and past participle of extinguish.

adjective. referring to something that has been eliminated

adjective. of a conditioned response; caused to die out because of the absence or withdrawal of reinforcement

"In addition to all these considerations, the right of North Carolina to have this title extinguished by the General Government, is strengthened by the policy which has been pursued towards the Cherokees by the States of Georgia, Tennessee, and Alabama."

destroyed  

distinguished  undistinguished  

dead  destroyed  extinct  out  out(predicate)  

extinguish