button mushroom
noun
Definition of button mushroom
: a usually small white mushroom (Agaricus bisporus synonym A. brunnescens) in which the pileus has not yet expanded
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1865
First Known Use of button mushroom
1865
BUTTON MUSHROOM Defined for English Language Learners
button mushroom
noun
Definition of button mushroom for English Language Learners
-
: a small, white mushroom that is often eaten as a vegetable
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