A B C D E F G H I K L M N O P R S T U V W X Choroidal Neovascularization Synonym(s) - Neovascularization, Choroidal Definition: A pathological process consisting of the formation of new blood vessels in the CHOROID. Broader term(s) Eye Diseases Uveal Diseases Choroid Diseases Choroidal Neovascularization MeSH © U.S. National Library of Medicine®.