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myofibril

[ mahy-uh-fahy-bruhl, -fib-ruhl ]
/ ˌmaɪ əˈfaɪ brəl, -ˈfɪb rəl /
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noun Cell Biology.
a contractile fibril of skeletal muscle, composed mainly of actin and myosin.

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Origin of myofibril

First recorded in 1895–1900; myo- + fibril
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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Medical definitions for myofibril

myofibril
[ mī′ə-fībrəl, -fĭbrəl ]

n.
One of the threadlike longitudinal fibrils occurring in a skeletal or cardiac muscle fiber.sarcostyle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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