English Etymology From an- + irido- + -ia. Noun aniridia (countable and uncountable, plural aniridias) A rare congenital condition characterized by the underdevelopment of the iris of the eye. Derived terms aniridia-Wilms' tumor syndrome Translations underdevelopment of the iris Finnish: aniridia Portuguese: aniridia f See also aniridia on Wikipedia.Wikipedia Portuguese Pronunciation (Brazil) IPA(key): /a.ni.ɾiˈd͡ʒi.ɐ/ (Brazil) IPA(key): /a.ni.ɾiˈd͡ʒi.ɐ/ (Southern Brazil) IPA(key): /a.ni.ɾiˈd͡ʒi.a/ (Portugal) IPA(key): /ɐ.ni.ɾiˈdi.ɐ/ [ɐ.ni.ɾiˈði.ɐ] Hyphenation: a‧ni‧ri‧di‧a Noun aniridia f (uncountable) (teratology) aniridia (absence of the iris)Wikiwand - on Seamless Wikipedia browsing. On steroids.