tumefaction

noun

tu·​me·​fac·​tion ˌtü-mə-ˈfak-shən 

ˌtyü-

1

: 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

2

: swelling

benign tumefactions