/ Dictionary / Index S sulphur butterfly: Meaning and Definition of Find definitions for: sul'phur but'terfly. Pronunciation: [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sulphur-bottom sulphur-flower Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language