[mahy-uh-fahy-bruh l, -fib-ruh l]
noun Cell Biology.
a contractile fibril of skeletal muscle, composed mainly of actin and myosin.
Origin of myofibril
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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.