The Collaborative International Dictionary
Revertent
Revertent \Re*vert"ent\, n. (Med.)
A remedy which restores the natural order of the inverted
irritative motions in the animal system. [Obs.]
--E. Darwin.
Wiktionary
revertent
n. (context medicine obsolete English) A remedy which restores the natural order of the inverted irritative motions in the animal system.