/ Dictionary / Index S streamlined: Meaning and Definition of Find definitions for: stream•lined Pronunciation: (strēm'līnd"), [key] — adj. having a contour designed to offer the least possible resistance to a current of air, water, etc.; optimally shaped for motion or conductivity. designed or organized to give maximum efficiency; compact. modernized; up-to-date. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: streamlined (Thesaurus) streamline streamline flow Related Content Daily Word Quiz: feral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language