muscle fiber


one of the structural cells of a muscle.

Origin of muscle fiber

First recorded in 1875–80 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for muscle fiber

muscle fiber


A cylindrical multinucleate cell composed of myofibrils that contract when stimulated.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.