metamerism

noun me·tam·er·ism \ mə-ˈta-mə-ˌri-zəm \

Definition of metamerism

: the condition of having or the stage of evolutionary development characterized by a body made up of metameres

First Known Use of metamerism

1877

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

metamerism

noun me·tam·er·ism \ mə-ˈtam-ə-ˌriz-əm \

medical Definition of metamerism

1 : isomerism especially of chemical compounds of the same type
2 : the condition of having or the stage of evolutionary development characterized by a body made up of metamers that is usually held to be an essential prelude to the differentiation of the more highly organized animals (as arthropods and vertebrates) through the disproportionate development and elaboration of some segments together with the coalescence, reduction, or loss of others
3 : the phenomenon exhibited by pairs of color metamers
  • the problem of metamerism in matching artificial with natural teeth

Learn More about metamerism


Seen and Heard

What made you want to look up metamerism? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to oppose successfully

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet-pasta-spelling-help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!