tumefaction

noun

1. (countable, uncountable)The process or result of tumefying, swelling, or rising into a tumour.

   “Tumefaction, (lat[in]) a cauſing to ſwell.”

   “1731, John Arbuthnot, An Essay concerning the Nature of Aliments, London: J. Tonson, Chapter 6, Prop. 2, p. 152, The common Signs and Effects of weak Fibres are Paleness, Smoothness, Coldness of the Skin, Colour of the Blood not Florid (for what maketh that is a strong action of the Solids) a weak Pulse, Tumefactions in the whole Body or Parts, Stagnation of Humours […]”

   “The livid tumefaction spread over the leg, with blisters here and there, whence there oozed a black liquid. Matters were taking a serious turn.”

   “Uttering these words, she squeezed my hand, which was now entwined with hers a scant millimeter from the straining tumefaction in my lap […].”