isomer - Wiktionary, the free dictionary
English
Noun
isomer (plural isomers)
- (physical chemistry) Any of two or more compounds with the same molecular formula but with different structure.
- (nuclear physics) Any of two or more atomic nuclei with the same mass number and atomic number but with different radioactive properties.
Etymology
From iso- + -mer.
Pronunciation
Printed 2026-09-15.
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