metamerism
[ muh-tam-uh-riz-uhm ]
/ məˈtæm əˌrɪz əm /
noun
Zoology.
- division into metameres, the developmental process of somite formation.
- existence in a metameric state.
Chemistry. isomerism resulting from the attachment of different groups to the same atom, as C2H5NHC2H5 and CH3NHC3H7.
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Origin of metamerism
Words nearby metamerism
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for metamerism
In Chiton the renal organs are not affected by the metamerism as they are in Nautilus.
In accordance with the metamerism of Nautilus already noticed, there are two pairs of renal organs.
The only other example which we have of this metamerism in the Mollusca is presented by the Chitons.
In the articulates the metamerism is chiefly external—an articulation of the body wall.
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British Dictionary definitions for metamerism
metamerism
/ (mɪˈtæməˌrɪzəm) /
noun
Also called: metameric segmentation, segmentation the division of an animal into similar segments (metameres). In many vertebrates it is confined to the embryonic nervous and muscular systems
chem a type of isomerism in which molecular structures differ by the attachment of different groups to the same atom, as in CH 3 OC 3 H 7 and C 2 H 5 OC 2 H 5
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Medical definitions for metamerism
metamerism
[ mə-tăm′ə-rĭz′əm ]
n.
The condition of having the body divided into metameres, exhibited in most animals only in the early embryonic stages of development.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.