METAMERISM
Etymology
Noun
metamerism (usually uncountable, plural metamerisms)
(biology) The segmentation of the body into similar discrete units.
(colorimetry) The matching of apparent color of objects with different spectral power distributions.
(chemistry) Structural isomerism.
Source: Wiktionary
Me*tam"er*ism, n.
1. (Biol.)
Definition: The symmetry of a metameric structure; serial symmetry; the
state of being made up of metameres.
2. (Chem.)
Definition: The state or quality of being metameric; also, the relation or
condition of metameric compounds.
Source: Webster’s Unabridged Dictionary 1913 Edition