myotome

noun
  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
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

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myotome in Medicine

myotome

[mīə-tōm′]
n.
  1. The segment of a somite in a vertebrate embryo that differentiates into skeletal muscle.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.