/ Dictionary / Index R resinous: Meaning and Definition of Find definitions for: res•in•ous Pronunciation: (rez'u-nus), [key] — adj. full of or containing resin. of the nature of or resembling resin. pertaining to or characteristic of resin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: resinous (Thesaurus) resinoid res ipsa loquitur Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language