| English noun: medullary sheath | |||
| 1. | medullary sheath (body) a layer of myelin encasing (and insulating) the axons of medullated nerve fibers | ||
| Synonyms | myelin sheath | ||
| Broader (hypernym) | case, sheath | ||
| Part holonym | axolemma, nodes of Ranvier, oligodendria, oligodendroglia, Ranvier's nodes | ||
| Part meronym | medullated nerve fiber, myelinated nerve fiber | ||
| Substance holonym | medulla, myelin, myeline | ||