/ Dictionary / Index S sinuosity: Meaning and Definition of Find definitions for: sin•u•os•i•ty Pronunciation: (sin"y-os'i-tē), [key] — pl. -ties. Often,a curve, bend, or turn: a sinuosity of the road. a sinuous form or character. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sinuosity (Thesaurus) sinumbra lamp sinuous Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language