noun
- one of two or more compounds that have the same molecular formula but different arrangements of atoms
Usage: chemistry
Examples
- Glucose and fructose are isomers with the same chemical formula but different structures.
- The two isomers have identical molecular weights but different physical properties.
- Chemists study how isomers can have vastly different biological effects.
- Structural isomers differ in the way their atoms are connected.
- The drug exists as two isomers, but only one is medically active.
- Students learned to identify constitutional isomers in organic chemistry class.