mushroom: 意味と定義

Any of various fleshy fungi of the class Basidiomycota, characteristically having an umbrella-shaped cap borne on a stalk, especially any of the edible kinds, as those of the genus Agaricus.

Something shaped like one of these fungi.

To multiply, grow, or expand rapidly: The population mushroomed in the postwar decades.

To swell or spread out into a shape similar to a mushroom.

Relating to, consisting of, or containing mushrooms: mushroom sauce.

Resembling mushrooms in rapidity of growth or evanescence: mushroom towns.