/ Dictionary / Index H hyposulfurous: Meaning and Definition of Find definitions for: hy•po•sul•fur•ous Pronunciation: (hī"pu-sul-fyoor'us, -sul'fur-us), [key] — adj. of or derived from hyposulfurous acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyposulfite hyposulfurous acid Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language