fomentation UK /fəʊmənˈteɪʃ(ə)n/US /ˌfoʊmənˈteɪʃən/ noun3 •The act of fomenting; the application of warm, soft, medicinal substances, as for the purpose of easing pain by relaxing the skin, or of discussing (dispersing) tumours.We have already spoken of the great utility of hot fomentation to the stomach and bowels, as a means of relieving intense suffering in any internal organ of the body, or in the extremities. — 1849 •Encouragement; excitation; instigation. •A lotion or poultice applied to a diseased or injured part of the body.[…] I purged him with our Quintaessencia Solutiuo, eight dayes together, that being done I made him a fomentation, that caused him to sweate well, and to spitte aboundaunce, […] — 1580 formsfomentations