/ Dictionary / Index D delineation: Meaning and Definition of Find definitions for: de•lin•e•a•tion Pronunciation: (di-lin"ē-ā'shun), [key] — n. the act or process of delineating. a chart or diagram; sketch; rough draft. a description. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: delineation (Thesaurus) delineate delineator Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language