Ovum /(ō"vŭm)/

pl. Ova, Ovums ((ō"vȧ))

1. A more or less spherical and transparent cell, which by a process of multiplication and growth develops into a mass of cells, constituting a new individual like the parent; an egg, spore, germ, or germ cell. See Illust. of Mycropyle. (Biol.)
2. One of the series of egg-shaped ornaments into which the ovolo is often carved. (Arch.)