Jacob's membrane

Jacob's membrane
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}. [1913 Webster]

And Jacob said . . . with my staff I passed over this Jordan, and now I am become two bands. --Gen. xxxii. 9, 10. [1913 Webster]

Thy name shall be called no more Jacob, but Israel. --Gen. xxxii. 28. [1913 Webster]

{Jacob's ladder}. (a) (Bot.) A perennial herb of the genus {Polemonium} ({Polemonium 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}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • Jacob's membrane — Membrane Mem brane, n. [F., fr. L. membrana the skin that covers the separate members of the body, fr. L. membrum. See {Member}.] (Anat.) A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part… …   The Collaborative International Dictionary of English

  • Jacob's membrane — etc.: see Jacob 3 …   Useful english dictionary

  • Membrane — Mem brane, n. [F., fr. L. membrana the skin that covers the separate members of the body, fr. L. membrum. See {Member}.] (Anat.) A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part or organ,… …   The Collaborative International Dictionary of English

  • 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}. [1913 Webster] And Jacob said . . . with my staff… …   The Collaborative International Dictionary of English

  • Jacob's ladder — 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}. [1913 Webster] And Jacob said . . . with my… …   The Collaborative International Dictionary of English

  • Jacob's staff — 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}. [1913 Webster] And Jacob said . . . with my… …   The Collaborative International Dictionary of English

  • Adventitious membrane — Membrane Mem brane, n. [F., fr. L. membrana the skin that covers the separate members of the body, fr. L. membrum. See {Member}.] (Anat.) A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part… …   The Collaborative International Dictionary of English

  • Schneiderian membrane — Membrane Mem brane, n. [F., fr. L. membrana the skin that covers the separate members of the body, fr. L. membrum. See {Member}.] (Anat.) A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part… …   The Collaborative International Dictionary of English

  • membrana de Jacob — Eng. Jacob s membrane Ver capa de fotorreceptores …   Diccionario de oftalmología

  • Arthur Jacob — (1790–1874) was an Irish Ophthalmologist.BiographyJacob, second son of John Jacob, M.D. (1754–1827), surgeon to the Queen s County infirmary, Maryborough, Ireland, by his wife Grace (1765–1835), only child of Jerome Alley of Donoughmore, was born …   Wikipedia

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