/ Dictionary / Index X xerophthalmia: Meaning and Definition of Find definitions for: xe•roph•thal•mi•a Pronunciation: (zēr"of-thal'mē-u, -op-), [key] — n. Ophthalm. abnormal dryness of the eyeball characterized by conjunctivitis, caused by a deficiency of tears and attributed to a lack of vitamin A. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: xerophthalmia (Thesaurus) xerophilous xerophyte Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language