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Isolde
Isole Egadi
Isole Eolie
isoleucine
isoline
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isomer
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isomerisation
isomerise
isomerization
isomerize
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isometric
isometric exercise
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isomerism definitions

WordNet (r) 3.0 (2005)

n
1: the state of being an isomer; the complex of chemical and physical phenomena characteristic of isomers

Merriam Webster's

noun Date: 1838 1. the relationship of two or more chemical species that are isomers 2. the relation of two or more nuclides with the same mass numbers and atomic numbers but different energy states and rates of radioactive decay

Webster's 1913 Dictionary

Isomerism I*som"er*ism, n. (Chem.) 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 l[ae]vo-tartaric acids. In such compounds there is usually at least one unsymmetrical carbon atom. See Unsymmetrical.



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