Exsiccation :: Exsiccation (n.) The act of operation of drying; evaporation or expulsion of moisture; state of being dried up; dryness.
Exsiccative :: Exsiccative (a.) Tending to make dry; having the power of drying.
Exsiccator :: Exsiccator (n.) An apparatus for drying substances or preserving them from moisture; a desiccator; also, less frequently, an agent employed to absorb moisture, as calcium chloride, or concentrated sulphuric acid..