The Collaborative International Dictionary of English v.0.48:

Turgesce \Tur*gesce"\, v. i. [imp. & p. p. Turgesced; p. pr. &
   vb. n. Turgescing.] [L. turgescere, v. incho. fr. turgere
   to swell.]
   To become turgid; to swell or be inflated. [R.]
   [1913 Webster] Turgescence