dri·er 1 also dry·er (dr???r)n.1. One that dries.2. A substance added to paint, varnish, or ink to speed drying.dri·er 2 (dr???r)adj.A comparative of dry.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.drier (?dra??) adj a comparative of drydrier (?dra??) n a variant spelling of dryerCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014dri?er1 (?dra? ?r) n. 1. one that dries. 2. any additive to speed the drying of paints, printing inks, etc. 3. dryer (def. 1). [1300?50] dri?er2 (?dra? ?r) adj. comparative of dry. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.