exsiccant

from The Collaborative International Dictionary of English v.0.48

Exsiccant \Ex*sic"cant\, a. [L. exsiccans, p. pr. of exsiccare.
   See {Exsiccate}.]
   Having the quality of drying up; causing a drying up. -- n.
   (Med.) An exsiccant medicine.
   [1913 Webster]