First Known Use: 1855
Dictionary
isomer
noun iso·mer \ˈī-sə-mər\
Definition of ISOMER
1
: one of two or more compounds, radicals, or ions that contain the same number of atoms of the same elements but differ in structural arrangement and properties
2
: a nuclide isomeric with one or more others
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Origin of ISOMER
International Scientific Vocabulary, back-formation from isomeric
Medical Dictionary
isomer
noun iso·mer \ˈī-sə-mər\
Medical Definition of ISOMER
1
: any of two or more compounds, radicals, or ions that contain the same number of atoms of the same elements but differ in structural arrangement and properties
2
: a nuclide isomeric with one or more others
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