The acquisition, development, or formation of a myelin sheath around a nerve fiber. SYN: medullation (2), myelinization, myelinogenesis.
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my·e·li·na·tion .mī-ə-lə-'nā-shən n
1) the process of acquiring a myelin sheath
2) the condition of being myelinated
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n.
the process in which myelin is laid down as an insulating layer around the axons of certain nerves. Myelination of nerve tracts in the central nervous system is completed by the second year of life.
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my·elin·a·tion (mi″ə-lĭ-naґshən) myelinization.Medical dictionary. 2011.