/ Dictionary / Index R rectangular hyperbola: Meaning and Definition of Find definitions for: rectan'gular hyper'bola Pronunciation: [key] — Geom. Geom. a hyperbola with transverse and conjugate axes equal to each other. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rectangular coordinates recti Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language