Metamerism



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

noun
1.
Zoology.

2.
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 .
/mɪˈtæməˌrɪzəm/
noun
1.
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
2.
(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)
n.
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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