D defs.my
Entry 1 sense Webster, 1913

Metamer

· Met·a·mer · IPA /ˈmɛt.ə.mər/
01 n. Any one of several metameric forms of the same substance, or of different substances having the same composition; as, xylene has three meta…
  1. 1.
    Any one of several metameric forms of the same substance, or of different substances having the same composition; as, xylene has three metamers, viz., orthoxylene, metaxylene, and paraxylene; an isomer.(Chem.)