Ovum

[Sarah]

A more or less spherical and transparent mass of granularprotoplasm, which by a process of multiplication and growth developsinto a mass of cells, constituting a new individual like the parent;an egg, spore, germ, or germ cell. See Illust. of Mycropyle.

[Monty]

an egg cell produced by a woman or female animal:

[Couch Potatoe]

A mature female reproductive cell, especially of a human or other animal, which can divide to give rise to an embryo usually only after fertilization by a male cell.