Main Entry: ¹mush·room

Pronunciation: \ˈməsh-ˌrüm, -ˌru̇m; chiefly Northern & Midland -ˌrün; dial ˈmə-shə-ˌrüm, -ˌru̇m, -ˌrün\

Function: noun

Etymology: Middle English musheron, from Anglo-French musherum, musseron, from Late Latin mussirion-, mussirio

Date: 15th century

1 a : an enlarged complex aboveground fleshy fruiting body of a fungus (as a basidiomycete) that consists typically of a stem bearing a pileus; especially : one that is edible b : fungus
2 : upstart
3 : something resembling a mushroom