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Any of the homologous segments that compose the bodies of certain animals; a somite.

met′a·mer′ic (-mĕr′ĭk, -mîr′-) adj.
met′a·mer′i·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Zoology) one of the similar body segments into which earthworms, crayfish, and similar animals are divided longitudinally. Also called: somite
[C19: from meta- + -mere]
metameral adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsoʊ maɪt)

1. any of the longitudinal series of segments or parts into which the body of certain animals is divided; a metamere.
2. one of the thickened segments of tissue that occur in pairs along the back of the vertebrate embryo.
[1865–70; < Greek sôm(a) body]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.metamere - one of a series of similar body segments into which some animals are divided longitudinallymetamere - one of a series of similar body segments into which some animals are divided longitudinally
segment - one of the parts into which something naturally divides; "a segment of an orange"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
For example, as shown in Figure 2, Ubx-YFP is expressed in a series of repeat units, called metameres. The boundaries of the metamere do not coincide with the boundaries of the segmental neuromere and epidermis [17, 18], but they coincide with the parasegmental boundaries.
As mentioned, for some of our experiments, earthworms had their suprapharyngeal ganglia removed, which is accomplished by using a razor blade to cut a single midline incision into the dorsal surface from the earthworm's first metamere to its fourth metamere.