noun Biology.
any of the segments of myofibril in striated muscle fibers.

1890–95; sarco- + -mere Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
sarcomere (ˈsɑːkəʊˌmɪə)
any of the units that together comprise skeletal muscle

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Medical Dictionary

sarcomere sar·co·mere (sär'kə-mēr')
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.
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American Heritage
Science Dictionary
sarcomere   (sär'kə-mîr')  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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