/ Dictionary / Index H hyoscine: Meaning and Definition of Find definitions for: hy•os•cine Pronunciation: (hī'u-sēn", -sin), [key] — n. Pharm. scopolamine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hyoscine (Thesaurus) hyolithid hyoscyamine Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language