[mahy-uh-fil-uh-muh nt]

Origin of myofilament

First recorded in 1945–50; myo- + filament Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

myofilament in Medicine


  1. 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.