/ Dictionary / Index R Riccati equation: Meaning and Definition of Find definitions for: Ric•ca'ti equa"tion Pronunciation: (ri-kä'tēIt.rēk-kä'tē), [key] — Math. Math. a differential equation, dy/dx + fy + gy + h = 0, where f, g, and h are functions of x. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ricardo Ricci Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language