xerophthalmia Syllabification: (xe·roph·thal·mi·a)Pronunciation: /ˌzi(ə)räfˈTHalmēə, ˌzi(ə)räp-/Definition of xerophthalmia noun Medicine abnormal dryness of the conjunctiva and cornea of the eye, with inflammation and ridge formation, typically associated with vitamin A deficiency. xerophthalmia in other Oxford dictionaries Definition of xerophthalmia in the British & World English dictionary