: an action or process of swelling or becoming tumorous
2
: swelling
Word History
Etymology
Middle English tumefaccioun, from Medieval Latin tumefaccion-, tumefaccio, from Latin tumefacere to cause to swell, from tumēre to swell + facere to make, do — more at thumb entry 1, do entry 1
First Known Use
15th century, in the meaning defined at sense 1
Medical Definition
tumefaction
noun
tu·me·fac·tion -ˈfak-shən
1
: an action or process of swelling or becoming tumorous