/ Dictionary / Index S spherical triangle: Meaning and Definition of Find definitions for: spher'ical tri'angle Pronunciation: [key] — Geom. Geom. a triangle formed by arcs of great circles of a sphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spherical sailing spherical trigonometry Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language