Definition of metameric in English:


Pronunciation /ˌmedəˈmerik/ /ˌmɛdəˈmɛrɪk/


  • 1Zoology
    Relating to or consisting of several similar segments or somites.

    ‘Indeed, there is: somites in metameric animals usually form sequentially from a posterior growth zone, a process found again in all three branches of the bilaterians.’
    • ‘The term iteration is used to denote processes that result in both metameric segments and repeated ectodermal skeletal structures.’
    • ‘Notably, the oldest known Early Cambrian chordate Yunnanozoon had its metameric muscular units located dorsally of the notochord, although its body was laterally compressed.’
    • ‘The body divided into a distinct cephalon and metameric trunk.’
    • ‘An organism is considered metameric when its body is mostly formed of serially repeated anatomical units called metameres.’
  • 2Chemistry
    dated Having the same proportional composition and molecular weight, but different functional groups and chemical properties; isomeric.

    • ‘And chemists use meta - to differentiate certain metameric chemical compounds (such as metacresol, paracresol, orthocresol).’