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membrane |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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, 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. From WordNet r 1.6 [wn]: membrane n 1: a thin pliable sheet of material 2: a pliable sheet of tissue that covers or lines or connects organs or cells of animals or plants [syn: {tissue layer}]
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