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myofibril

[mahy-uh-fahy-bruh l, -fib-ruh l]
noun Cell Biology.
  1. 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. 2018

myofibril in Medicine

myofibril

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