Noun
- 1. Jacob, Francois Jacob
- usage: French biochemist who (with Jacques Monod) studied regulatory processes in cells (born in 1920)
- 2. Jacob, patriarch
- usage: (Old Testament) son of Isaac; brother of Esau; father of the twelve patriarchs of Israel; Jacob wrestled with God and forced God to bless him, so God gave Jacob the new name of Israel (meaning `one who has been strong against God')
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