Pronunciation: ( jā'kub for 1, 3; Fr. zha-kôb' for 2), [key]
1. the second son of Isaac, the twin brother of Esau, and father of the 12 patriarchs. Gen. 25:24–34.
2. Fran•çois Pronunciation: (frän-swa'), [key] born 1920, French geneticist: Nobel prize for medicine 1965.
3. a male given name: from a Hebrew word meaning “supplanter.”
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.