VIVIPAROUS a.
of which are produced alive, either by bulbs instead of seeds, or by the seeds themselves germinating on the plant, instead of falling, as they usually do; -- opposed to oviparous. Viviparous fish. (Zoöl.) See Embiotocoid. -- Viviparous shell (Zoöl.), any one of numerous species of operculated fresh-water gastropods b…
YEAST n.
depending on the conditions of growth. Yeast cake, a mealy cake impregnated with the live germs of the yeast plant, and used as a conveniently transportable substitute for yeast. -- Yeast plant (Bot.), the vegetable organism, or fungus, of which beer yeast consists. The yeast plant is composed of simple cells, or gran…