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The Collaborative International Dictionary
Exsiccator

Exsiccator \Ex"sic*ca`tor\, n. (Chem.) 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.

Wiktionary
exsiccator

n. (context dated English) a desiccator