/ Dictionary / Index D decal: Meaning and Definition of Find definitions for: de•cal Pronunciation: (dē'kal, di-kal'), [key] — n., v., -caled -called, -cal•ing -cal•ling. —n. a specially prepared paper bearing a picture or design for transfer to wood, metal, glass, etc. the picture or design itself. —v.t. to apply decals on. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decal (Thesaurus) decahydronaphthalene decalcification Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language