myelin

English Thesaurus

1. a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers (noun.substance)

hypernym	:	fat,
definition	:	a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides) (noun.substance)

substance meronym	:	medullary sheath, myelin sheath,
definition	:	a layer of myelin encasing (and insulating) the axons of medullated nerve fibers (noun.body)

derivation	:	myelinic,
definition	:	of or relating to the substance that forms a sheath around the axon of some nerve fibers (adj.pert)

derivation	:	myelinic,
definition	:	of or relating to the substance that forms a sheath around the axon of some nerve fibers (adj.pert)