A substance added to paints and some medicines to promote drying; a drier.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "siccative" in a sentence
"Questi dunque bolliti con altre sue misture gli fecero la vernice ch 'egli, e tutti pittori del mondo aveano lungamente desiderata "--" found that linseed and nut oil were the most siccative."
"It is an excellent dryer in oil, and has often been used as a siccative with other colours, but it cannot safely be so employed except with the ochres, earths, and blacks in general."
"In painting it follows, and adds richness and depth to, gamboge in water, and goes well into varnish; but any lead used in rendering oils siccative, browns it, and for the same reason it is useless in tints."