iso-
prefixUK /aɪsə-/ · US /aɪsə-/
Etymology Internationalism. Learned borrowing from Ancient Greek ἴσος (ísos, “equal”).
1
Morpheme Same, identical.
- iso- + effect → isoeffect
- iso- + intense → isointense
2
Morpheme Equal; equivalent.
- iso- + rhythm → isorhythm
3
Chemistry, Natural sciences, Physical sciences Morpheme Isomer.
- iso- + methadone → isomethadone
4
Chemistry, Natural sciences, Organic chemistry, Physical sciences Morpheme Of an aliphatic compound, especially a fatty acid, having a branch on the penultimate carbon atom of a chain.
- iso- + hexane → isohexane
5
Climatology, Geography, Meteorology, Natural sciences Morpheme Forms terms for specific kinds of isolines.
- iso- + -therm → isotherm
- iso- + -chrone → isochrone
6
Mathematics, Sciences Morpheme Isomorphism.