metamerism

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

noun

Zoology.
  1. division into metameres, the developmental process of somite formation.
  2. existence in a metameric state.
Chemistry. isomerism resulting from the attachment of different groups to the same atom, as C2H5NHC2H5 and CH3NHC3H7.

QUIZZES

LEARN THE SPANISH WORDS FOR THESE COMMON ANIMALS!

Are you learning Spanish? Or do you just have an interest in foreign languages? Either way, this quiz on Spanish words for animals is for you.
Question 1 of 13
How do you say “cat” 🐈 in Spanish?

Origin of metamerism

1840–50; (in def. 1) metamere + -ism; (in def. 2) meta- + (iso)merism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for metamerism

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-tămə-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.