sarcolemma
noun
sar·co·lem·ma ˌsär-kə-ˈle-mə 
: the membrane enclosing a striated muscle fiber
sarcolemmal
ˌsär-kə-ˈle-məl
adjective 
Example Sentences
Recent Examples on the Web Curiously, the fungus destroyed the sarcolemma, a kind of sheath around the muscle fibers. 
Matt Simon, WIRED, 17 July 2019
Matt Simon, WIRED, 17 July 2019 Word History
Etymology
sarco- + Greek lémma "rind, husk" — more at lemma entry 2
Note: Term introduced by the English surgeon and histologist William Bowman (1816-92) in "On the minute structure and movements of voluntary muscle," Philosophical Transactions of the Royal Society of London, 1840, part II, p. 475.
First Known Use
1840, in the meaning defined above
Medical Definition
sarcolemma
noun
sar·co·lem·ma ˌsär-kə-ˈlem-ə
: the thin transparent homogeneous sheath enclosing a striated muscle fiber
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