isomerism Meaning, Definition & Usage

  1. noun the state of being an isomer; the complex of chemical and physical phenomena characteristic of isomers

WordNet

I*som"er*ism noun
Definitions
  1. (Chem.) The state, quality, or relation, of two or more isomeric substances. "metamerism" is no longer used, and "isomerism" is generally applied to this concept. including optical isomerism, the property of optical isomers

Webster 1913