WordReference Random House Unabridged Dictionary of American English © 2025
or•tho•don•ture
(ôr′thə don′chər),USA pronunciation n.
- Dentistryorthodontia (def. 2).
- apparently blend of, blended orthodontia and denture, probably origin, originally (or exclusively) in r-less accents, in which both words end in (ə) 1965–70