Medical term:
metamerism
me·tam·er·ism
(me-tam'ĕr-izm),1. A type of anatomic structure exhibiting serially homologous metameres; in primitive forms, such as the annelids, the metameres are almost alike in structure; in vertebrates, specialization in the cephalic region masks the underlying metamerism, which is still clearly evident in serially repeated vertebrae, ribs, intercostal muscles, and spinal nerves, and in young vertebrate embryos.
2. In chemistry, rarely used synonym for structural isomerism.
Farlex Partner Medical Dictionary © Farlex 2012
metamerism
(mĭ-tăm′ə-rĭz′əm)n.
The condition of having the body divided into metameres, apparent in certain animals only in the early embryonic stages of development.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
me·tam·er·ism
(me-tam'ĕr-izm)A pattern of anatomic structure exhibiting serial repetition of homologous structures, as vertebrae, ribs, intercostal muscles, and spinal nerves.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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