Source : Webster's Revised Unabridged Dictionary (1913)

Hidrotic \Hi*drot"ic\, a. [Gr. ? sudorific.] (Med.)
   Causing perspiration; diaphoretic or sudorific.

Hidrotic \Hi*drot"ic\, n.
   A medicine that causes perspiration; a diaphoretic or a
   sudorific.

Source : WordNet®

hidrotic
     adj : of or relating to sweat