metamerism

[ muh-tam-uh-riz-uhm ]

noun
  1. Zoology.

    • division into metameres, the developmental process of somite formation.

    • existence in a metameric state.

  2. Chemistry. isomerism resulting from the attachment of different groups to the same atom, as C2H5NHC2H5 and CH3NHC3H7.

Origin of metamerism

1
1840–50; (in def. 1) metamere + -ism; (in def. 2) meta- + (iso)merism

Words Nearby metamerism

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How to use metamerism in a sentence

British Dictionary definitions for metamerism

metamerism

/ (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 CH 3 OC 3 H 7 and C 2 H 5 OC 2 H 5

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