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A genus of microorganisms of which the acetic ferment (aceti), which converts alcoholic fluids into vinegar, is a representative. Cf. Mother.

Mucous membrane.

A variety of mushroom growth.

From "A mushroom," and "skin" A cryptogamous growth, said to be the essence of plica.

Genus of fungi.

An old term for a mucous membrane.

A genus of fungi. It occurs in the form of a membrane on the surface of fermented liquids exposed to the atmosphere.