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Table of Contents -- isomer
POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
THESAURUS
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isomer

 : 
Noun
 : 
i=so=mer

WORDNET DICTIONARY

Noun isomer has 1 sense

CIDE DICTIONARY

isomern. [See Isomeric.].
     A compound which is isomeric with another body or compound; a compound having the same chemical composition as another compound; a member of an isomeric series.  [1913 Webster]
    " An isomer may be a structural isomer, in which some of the atoms are bonded to different atoms (as in CH3.CH2.NH2 and CH3.NH.CH3), or an optical isomer, in which the number and types of chemical bonds are identical, but the arrangement of the atoms in three-dimensional space is different; the latter are also called stereoisomers."  [PJC]

OXFORD DICTIONARY

isomer, n.
1 Chem. one of two or more compounds with the same molecular formula but a different arrangement of atoms and different properties.
2 Physics one of two or more atomic nuclei that have the same atomic number and the same mass number but different energy states.

Derivative
isomeric adj. isomerism n. isomerize v. (also -ise).
Etymology
G f. Gk isomeres sharing equally (as ISO-, meros share)

THESAURUS

isomer

acid, acidity, agent, alkali, alkalinity, alloisomer, anion, antacid, artificial isotope, atom, base, biochemical, cation, chemical, chemical element, chromoisomer, compound, copolymer, deuterium, dimer, element, heavy chemicals, heavy hydrogen, high polymer, homopolymer, hydracid, inorganic chemical, ion, isobar, isotone, isotope, macromolecule, metamer, molecule, monomer, neutralizer, nonacid, nuclear isomer, organic chemical, oxyacid, polymer, protium, pseudoisomer, radical, radioactive isotope, radioisotope, reagent, strontium 90, sulfacid, trimer
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