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.

Origin of metamerism

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

Words nearby metamerism

metamathematics, metamer, metamere, metameric, metameric nervous system, metamerism, metamict, metamorphic, metamorphic facies, metamorphic rock, metamorphism

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for metamerism

In Chiton the renal organs are not affected by the metamerism as they are in Nautilus.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6|Various
In accordance with the metamerism of Nautilus already noticed, there are two pairs of renal organs.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6|Various
The only other example which we have of this metamerism in the Mollusca is presented by the Chitons.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6|Various
In the articulates the metamerism is chiefly external—an articulation of the body wall.
The Wonders of Life|Ernst Haeckel

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

单词	metamerism
释义	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. Origin of metamerism 1840–50; (in def. 1) metamere + -ism; (in def. 2) meta- + (iso)merism Words nearby metamerism metamathematics, metamer, metamere, metameric, metameric nervous system, metamerism, metamict, metamorphic, metamorphic facies, metamorphic rock, metamorphism Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for metamerism In Chiton the renal organs are not affected by the metamerism as they are in Nautilus. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6\|Various In accordance with the metamerism of Nautilus already noticed, there are two pairs of renal organs. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6\|Various The only other example which we have of this metamerism in the Mollusca is presented by the Chitons. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6\|Various In the articulates the metamerism is chiefly external—an articulation of the body wall. The Wonders of Life\|Ernst Haeckel 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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 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.
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