1. (

• Jacob ,
• Francois_Jacob

) French biochemist who (with Jacques Monod) studied regulatory processes in cells (born in 1920) ;

2. (

• Jacob

) (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') ;