D defs.my
Entry 1 sense Webster, 1913

Jacob

/jāk'-əb/ · Ja·cob · IPA /ˈd͡ʒeɪkəb/
01 n. 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 …
  1. 1.
    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. Also: 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.
Phrases & compounds
Jacob's ladder — A perennial herb of the genus Polemonium (Polemonium cœruleum), having corymbs of drooping flowers, usually blue. Gray.
Jacob's membrane — See Retina.
Jacob's staff — A name given to many forms of staff or weapon, especially in the Middle Ages; a pilgrim's staff