myotome

World English Dictionary
myotome (ˈmaɪəˌtəʊm)
 
n
1.  any segment of embryonic mesoderm that develops into skeletal muscle in the adult
2.  any of the segmentally arranged blocks of muscle in lower vertebrates such as fishes

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American Heritage
Medical Dictionary

myotome my·o·tome (mī'ə-tōm')
n.

  1. The segment of a somite in a vertebrate embryo that differentiates into skeletal muscle. Also called muscle plate.

  2. A muscle or group of muscles derived from one somite and innervated by a single segment of a spinal nerve.

  3. A knife for dividing muscle.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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