/ Dictionary / Index S Southern Coalsack: Meaning and Definition of Find definitions for: South'ern Coal'sack Pronunciation: [key] — Astron. Astron. Coalsack. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Southern Christian Leadership Conference southern cornstalk borer 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