A B C D E F G H I K L M N O P R S T U V W X Lacrimal Apparatus Diseases Synonym(s) - Epiphora - Apparatus Disease, Lacrimal - Disease, Lacrimal Apparatus Definition: Diseases of the lacrimal apparatus. Broader term(s) Eye Diseases Lacrimal Apparatus Diseases See also Dacryocystitis Dry Eye Syndromes Lacrimal Duct Obstruction MeSH © U.S. National Library of Medicine®.