Dictionary
I•sis
Pronunciation: (ī'sis), [key]—
n.
Egyptian Relig.a goddess of fertility, the sister and wife of Osiris and mother of Horus, and usually represented as a woman with a cow's horns with the solar disk between them: later worshiped in the Greek and Roman empires.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.