/ Dictionary / Index S sac fungus: Meaning and Definition of Find definitions for: sac' fun"gus Pronunciation: [key] ascomycete. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sacerdotalism sachem Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language