n. 1. One who, or that which, desiccates. [ 1913 Webster ]

2. (Chem.) A short glass jar fitted with an air-tight cover, and containing some desiccating agent, as sulphuric acid, phosphorus pentoxide, or calcium chloride, above which is supported on a perforated platform the material to be dried, or preserved from moisture. [ 1913 Webster +PJC ]

3. A machine or apparatus for drying fruit, milk, etc., usually by the aid of heat; an evaporator. [ Webster 1913 Suppl. ]

a. Desiccative. [ 1913 Webster ]