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
Recent Examples of isomer from the Web
But the military research into isomers still continues.
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Origin and Etymology of isomer
International Scientific Vocabulary, back-formation from isomeric
First Known Use: 1855
Learn More about isomer
Britannica.com: Encyclopedia article about isomer
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