/ Dictionary / Index H hydroxyurea: Meaning and Definition of Find definitions for: hy•drox•y•u•re•a Pronunciation: (hī-drok"sē-yoo-rē'u, -yoor'ē-u), [key] — n. Pharm. a synthetic compound, CHNO, used in cancer therapy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydroxyproline hydroxyzine Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language