/ Dictionary / Index P parametric equation: Meaning and Definition of Find definitions for: par'amet'ric equa'tion Pronunciation: [key] — Math. Math. one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parametric amplifier parametrize Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language