The Egyptian goddess Isis.
Isis definition by Webster's New World
Egypt. Myth. the goddess of fertility, sister and wife of Osiris, usually represented with a cow's horns surrounding a solar (or lunar) disk
Origin: Classical Latin ; from Classical Greek
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Thames, esp. at, & west of, Oxford
Isis definition by American Heritage Dictionary
An ancient Egyptian goddess of fertility, the sister and wife of Osiris.
The upper Thames River in south-central England in the vicinity of Oxford. The name is used locally and in literature.