fly agaric

noun

Definition of fly agaric

:a medium to large poisonous amanita mushroom (Amanita muscaria) with a usually bright red cap

First Known Use of fly agaric

1788


Medical Dictionary

fly agaric

noun

medical Definition of fly agaric

:a poisonous mushroom of the genus Amanita (A. muscaria) that has a variably colored but typically bright-red pileus with a warty white scurf on the surface that with the related death cap is responsible for most cases of severe mushroom poisoning, that has been used as a source of poison for flypaper, and that is extensively used chiefly in northeastern Asia as an intoxicant especially for the hallucinatory effects that it produces called also fly amanita, fly mushroom

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