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Membrane

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Definitions of Membrane

Pronunciation : Mem"brane
Part of Speech : n.
Etymology : [F., fr. L. membrana the skin that covers the separate members of the body, fr. L. membrum. See Member.] (Anat.)
Definition : Defn: A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part or organ, and often secreting or absorbing certain fluids.

Note: The term is also often applied to the thin, expanded parts, of various texture, both in animals and vegetables. Adventitious membrane, a membrane connecting parts not usually connected, or of a different texture from the ordinary connection; as, the membrane of a cicatrix. -- Jacob's membrane. See under Retina. -- Mucous membranes (Anat.), the membranes lining passages and cavities which communicate with the exterior, as well as ducts and receptacles of secretion, and habitually secreting mucus. -- Schneiderian membrane. (Anat.) See Schneiderian. -- Serous membranes (Anat.) , the membranes, like the peritoneum and pleura, which line, or lie in, cavities having no obvious outlet, and secrete a serous fluid.
Source : Webster's Unabridged Dictionary, 1913

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