the GNU version of the Collaborative International Dictionary of English
adj. Drying; causing to dry.
The Century Dictionary and Cyclopedia
Drying; causing to become dry, or to dry up.
n. In painting, any material added to an oil-paint to hasten the drying of the oil; a dryer. Siccative is more of a book-word, dryer being the term commonly used by painters.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture)