ISOMERISM

isomerism

(noun) the state of being an isomer; the complex of chemical and physical phenomena characteristic of isomers

Source: WordNet® 3.1

Etymology

Noun

isomerism (countable and uncountable, plural isomerisms)

(chemistry) the phenomenon of the existence of isomers - the existence of different substances with the same molecular formulae

(chemistry) the interconversion of isomers

(nuclear physics) nuclear isomerism, the phenomenon of the existence of nuclear isomers

Coordinate terms

• tautomerism

Source: Wiktionary

I*som"er*ism, n. (Chem.)

Definition: The state, quality, or relation, of two or more isomeric substances. Physical isomerism (Chem.), the condition or relation of certain (metameric) substances, which, while chemically identical (in that they have the same composition, the same molecular weights, and the same ultimate constitution), are yet physically different, as in their action on polarized light, as dextro- and lævo-tartaric acids. In such compounds there is usually at least one unsymmetrical carbon atom. See Unsymmetrical.

Source: Webster’s Unabridged Dictionary 1913 Edition

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