myofilament

[ mahy-uh-fil-uh-muhnt ]
/ ˌmaɪ əˈfɪl ə mənt /

noun Cell Biology.

a threadlike filament of actin or myosin that is a component of a myofibril.

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Origin of myofilament

First recorded in 1945–50; myo- + filament
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Medical definitions for myofilament

myofilament
[ mī′ə-fĭlə-mənt ]

n.

Any of the ultramicroscopic filaments, made up of actin and myosin, that are the structural units of a myofibril.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.