noun Cell Biology.
a mitochondrion occurring in a muscle fiber.
Origin of sarcosome
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A large specialized mitochondrion found in striated muscle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.