Ī'sis, n.

noun

n. (Myth.) The principal goddess worshipped by the Egyptians. She was regarded as the mother of Horus, and the sister and wife of Osiris. The Egyptians adored her as the great benefactress of their country, who instructed their ancestors in the art of cultivating wheat and barley.

An engraving of Isis seated on a chair, wearing an elaborate headdress and holding an infant.
Isis.