[muh-tam-uh-riz-uh m] /məˈtæm əˌrɪz əm/


Chemistry. isomerism resulting from the attachment of different groups to the same atom, as C 2 H 5 NHC 2 H 5 and CH 3 NHC 3 H 7 .
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 CH3OC3H7 and C2H5OC2H5

metamerism me·tam·er·ism (mə-tām’ə-rĭz’əm)
The condition of having the body divided into metameres, exhibited in most animals only in the early embryonic stages of development.


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