mushroom

mush·room

noun \ˈməsh-ˌrüm, -ˌru̇m\

Definition of MUSHROOM

1

: an enlarged complex fleshy fruiting body of a fungus (as most basidiomycetes) that arises from an underground mycelium and consists typically of a stem bearing a spore-bearing structure; especially : one that is edible—compare toadstool

2

: fungus 1