agaric

n. type of mushroom, fungus

An agaric is a type of fungal fruiting body characterized by the presence of a pileus that is clearly differentiated from the stipe, with lamellae (gills) on the underside of the pileus. "Agaric" can also refer to a basidiomycete species characterized by an agaric-type fruiting body. An archaic usage of the word agaric meant ‘tree-fungus': from Latin agaricum, however that meaning was superseded by the Linnaean interpretation in 1753 when Linnaeus used the generic name Agaricus for gilled mushrooms.
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Noun
1. fungus used in the preparation of punk for fuses
(synonym) Fomes igniarius
(hypernym) fungus
(member-holonym) Fomes, genus Fomes
2. a saprophytic fungus of the order Agaricales having an umbrellalike cap with gills on the underside
(hypernym) basidiomycete, basidiomycetous fungi
(hyponym) mushroom
(member-holonym) Agaricales, order Agaricales

n. agaric, type of mushroom

(n.)
An old name for several species of Polyporus, corky fungi growing on decaying wood.
  

(n.)
A fungus of the genus Agaricus, of many species, of which the common mushroom is an example.