myelin sheath
nounAnatomy.
a wrapping of myelin around certain nerve axons, serving as an electrical insulator that speeds nerve impulses to muscles and other effectors.
Origin of myelin sheath
1First recorded in 1895–1900
Words Nearby myelin sheath
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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