myelin sheath
English Thesaurus
1. a layer of myelin encasing (and insulating) the axons of medullated nerve fibers (noun.body)
hypernym | : | case, sheath, |
definition | : | an enveloping structure or covering enclosing an animal or plant organ or part (noun.body) |
part holonym | : | axolemma, |
definition | : | outer membrane covering an axon (noun.body) |
part holonym | : | oligodendria, oligodendroglia, |
definition | : | tissue consisting of glial cells with sheetlike processes that form the myelin sheath of nerve fibers (noun.body) |
substance holonym | : | medulla, myelin, myeline, |
definition | : | a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers (noun.substance) |
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