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sarcomere

[sahr-kuh-meer]

noun Biology.

any of the segments of myofibril in striated muscle fibers.

Origin of sarcomere

First recorded in 1890–95; sarco- + -mere
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for sarcomere

sarcomere

noun

any of the units that together comprise skeletal muscle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
sarcomere in Medicine

sarcomere

[sär′kə-mîr′]

n.

One of the segments into which a fibril of striated muscle is divided.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
sarcomere in Science

sarcomere

[sär′kə-mîr′]

The contractile unit of a skeletal muscle fiber. Sarcomeres are divided into bands of filaments made of actin or myosin. During muscle contraction, the filaments slide over each other to cause shortening of the sarcomere.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.