Jacob

[ jey-kuh b for 1, 3; French zha-kawb for 2 ]
/ ˈdʒeɪ kəb for 1, 3; French ʒaˈkɔb for 2 /

noun

the second son of Isaac, the twin brother of Esau, and father of the 12 patriarchs. Gen. 25:24–34.
Fran·çois [frahn-swa] /frɑ̃ˈswa/,1920–2013, French geneticist: Nobel Prize in Medicine 1965.
a male given name: from a Hebrew word meaning “supplanter.”

Example sentences from the Web for jacob

British Dictionary definitions for jacob

Jacob
/ (ˈdʒeɪkəb) /

noun

Old Testament the son of Isaac, twin brother of Esau, and father of the twelve patriarchs of Israel
Also called: Jacob sheep any of an ancient breed of sheep having a fleece with dark brown patches and two or four horns

Word Origin for Jacob

sense 2 in allusion to Genesis 30:40

Medical definitions for jacob

Jacob
[ zhä-kôb′ ]
François Born 1920

French geneticist. He shared a 1965 Nobel Prize for the study of regulatory activity in body cells.

Scientific definitions for jacob

Jacob
[ zhä-kôb′ ]
François Born 1920

French geneticist who studied how genes control cellular activity by directing the synthesis of proteins. With Jacques Monod, he theorized that there are genes that regulate the activity of other, neighboring genes. They also proposed the existence of messenger RNA.