WordReference Random House Unabridged Dictionary of American English © 2026
zwit•ter•i•on
(tsvit′ər ī′ən),USA pronunciation n. [Physical Chem.]
zwit•ter•i•on•ic
(tsvit′ər ī on′ik),USA pronunciation adj.
- Chemistryan ion with both a positive and a negative charge.
- German Zwitterion (1897), equivalent. to Zwitter hybrid, hermaphrodite + Ion ion
'zwitterionic' also found in these entries (note: many are not synonyms or translations):