WordReference Random House Unabridged Dictionary of American English © 2025
tu•me•fac•tion
(to̅o̅′mə fak′shən, tyo̅o̅′-),USA pronunciation n.
- Pathologyan act of making or becoming swollen or tumid.
- Latin tumefactiōn- (stem of tumefactiō a causing to swell), equivalent. to tumefact(us) (past participle of tumefacere; see tumefy) + -iōn- -ion
- French
- 1590–1600