/ Dictionary / Index H hemianopsia: Meaning and Definition of Find definitions for: hem•i•a•nop•si•a Pronunciation: (hem"ē-u-nop'sē-u), [key] — n. Ophthalm. any of several conditions in which there is blindness in half of the visual field, involving one or both eyes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hemianopsia (Thesaurus) hemialgia hemic Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language