/ Dictionary / Index S stadial: Meaning and Definition of Find definitions for: sta•di•al Pronunciation: (stā'dē-ul), [key] — Geol. Geol. —n. stade. —adj. of or pertaining to a stade or stades. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stadia stadia rod 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