myelin
noun Etymology: International Scientific Vocabulary Date: 1873 a soft white somewhat fatty material that forms a thick myelin sheath about the protoplasmic core of a myelinated nerve fiber • myelinic adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • myelin — (n.) also myeline, soft material found in nerve tissues, 1867, from Ger. Myelin (1854), from Gk. myelos marrow; the brain, innermost part, of unknown origin …   Etymology dictionary

  • myelin — my e*lin, myeline my e*line, n. [Gr. myelo s marrow.] (Physiol. Chem.) (a) A soft white substance constituting the medullary sheaths of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, protein, and some fat. (b) One of a… …   The Collaborative International Dictionary of English

  • Myelīn — (Talksteinmark), s. Steinmark …   Pierer's Universal-Lexikon

  • Myelīn — Myelīn, Nervenmark, fettähnliche Substanz (Lecithin), in den meisten Nervenfasern der Wirbeltiere und mancher Wirbellosen …   Meyers Großes Konversations-Lexikon

  • myelin — [mī′ə lin] n. [Ger < Gr myelos, marrow: see MYELO & INE3] the white, fatty substance forming a sheath about certain nerve fibers myelinic adj …   English World dictionary

  • Myelin — Structure of a typical neuron Myelin sheath Dendrite …   Wikipedia

  • Myelin — Transmissionselektronenmikroskopisches Bild der das Axon konzentrisch umgebenden Myelinscheide Myelin ist eine lipidreiche Biomembran, welche die Axone der meisten Nervenzellen von Wirbeltieren spiralförmig umgibt und elektrisch isoliert. Myelin… …   Deutsch Wikipedia

  • Myelin — The fatty substance that covers and protects nerves. Myelin is a layered tissue surrounding the axons or nerve fibers. The sheath around the nerve fibers which acts electrically as a conduit in an electrical system, ensuring that messages sent by …   Medical dictionary

  • myelin — myelinic, adj. /muy euh lin/, n. Biol. a soft, white, fatty material in the membrane of Schwann cells and certain neuroglial cells: the substance of the myelin sheath. Also, myeline /muy euh leen /. [1865 70; MYEL + IN2] * * * ▪ biochemistry… …   Universalium

  • myelin — The material making up the myelin sheath of nerve axons …   Dictionary of molecular biology

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