The Collaborative International Dictionary of English v.0.48:

Inturgescence \In`tur*ges"cence\, n. [L. inturgescens, p. pr. of
   inturgescere to swell up. See 1st In-, and Turgescent.]
   A swelling; the act of swelling, or state of being swelled.
   [Obs.] --Sir T. Browne.
   [1913 Webster]