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isomer

i·so·mer

isomer

pronunciation:
aI s mr
features:
Word Parts
part of speech: noun
definition 1: a chemical compound that has the same kind and number of atoms as one or more other compounds, but differs from them in structural or spatial arrangement of the atoms and therefore in its properties.
definition 2: in physics, one of two or more atomic species that have the same atomic weight and atomic number but different energy levels and half-lives.
derivation: isomeric (adj.)
Word Parts
The word isomer contains the following parts:
mer, -mere Greek root that means part