Jacob - Definitions from Dictionary.com

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

Ja·cob

Audio Help [jey-kuh

b for 1, 3; Fr. zha-kawb for 2] Pronunciation Key

–noun

1.	the second son of Isaac, the twin brother of Esau, and father of the 12 patriarchs. Gen. 25:24–34.

2.	Fran·çois [frahn-swa] Pronunciation Key - Show IPA Pronunciation, born 1920, French geneticist: Nobel prize for medicine 1965.

3.	a male given name: from a Hebrew word meaning “supplanter.”

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
Jacob

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American Heritage Dictionary - Cite This Source - Share This

Ja·cob Audio Help (jā'kəb) Pronunciation Key
In the Bible, the son of Isaac and grandson of Abraham. His 12 sons became the progenitors of the 12 tribes of Israel.

[Late Latin Iacōbus, from Greek Iakōb, from Hebrew ya'āqōb, (God) has protected; see ʕqb in Semitic roots.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage Dictionary - Cite This Source - Share This

Ja·cob Audio Help (zhä-kôb') Pronunciation Key
French geneticist. He shared a 1965 Nobel Prize for the study of regulatory activity in body cells.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
Jacob

masc. proper name, name of O.T. patriarch, son of Isaac and Rebecca and father of the founders of the twelve tribes, from L.L. Jacobus, from Gk. Iakobos, from Heb. Ya'aqobh, lit. "one that takes by the heel" (Gen. xxviii.12), a derivative of 'aqebh "heel."

WordNet - Cite This Source - Share This

jacob
noun
1.	French biochemist who (with Jacques Monod) studied regulatory processes in cells (born in 1920)
2.	(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')

The American Heritage Science Dictionary - Cite This Source - Share This

Jacob Audio Help (zhä-kôb') Pronunciation Key
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.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

U.S. Gazetteer - Cite This Source - Share This

Jacob City, FL (city, FIPS 35200) Location: 30.89415 N, 85.40987 W
Population (1990): 261 (115 housing units)
Area: 8.0 sq km (land), 0.3 sq km (water)

Jacob, IL Zip code(s): 62950

Saint Jacob, IL Zip code(s): 62281

St. Jacob, IL (village, FIPS 66859) Location: 38.71685 N, 89.76865 W
Population (1990): 752 (301 housing units)
Area: 1.4 sq km (land), 0.0 sq km (water)

U.S. Gazetteer, U.S. Census Bureau

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Jacob

Ja"cob\, n. [Cf. F. Jacob. See 2d Jack.] A Hebrew patriarch (son of Isaac, and ancestor of the Jews), who in a vision saw a ladder reaching up to heaven (--Gen. xxviii. 12); -- also called Israel.

And Jacob said . . . with my staff I passed over this Jordan, and now I am become two bands. --Gen. xxxii. 9, 10.

Thy name shall be called no more Jacob, but Israel. --Gen. xxxii. 28.

Jacob's ladder. (a) (Bot.) A perennial herb of the genus Polemonium (P. c[oe]ruleum), having corymbs of drooping flowers, usually blue. Gray. (b) (Naut.) A rope ladder, with wooden steps, for going aloft. --R. H. Dana, Jr. (c) (Naut.) A succession of short cracks in a defective spar.

Jacob's membrane. See Retina.

Jacob's staff. (a) A name given to many forms of staff or weapon, especially in the Middle Ages; a pilgrim's staff. [Obs.] --Spenser. (b) (Surveying) See under Staff.

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