medullary sheath
NounSynonyms:
myelin sheath
Open English WordNet
Noun (1)
- a layer of myelin encasing (and insulating) the axons of medullated nerve fibersSynonyms: myelin sheathType of sheath, casePart of medullated nerve fiber, myelinated nerve fiberParts Ranvier's nodes, oligodendroglia, axolemmaMade of myelin, myeline
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onerousadjective
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Webster's Dictionary (1913)
Medullary sheath
Anatomy, the layer of white semifluid substance (myelin), between the primitive sheath and axis cylinder of a medullated nerve fiber.
From the entry Medullary.
Medullary sheath
. Anatomy See under Medullary.
From the entry Sheath.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54