aniridia

Term: aniridia

Literally meaning: “ without  rainbow”

Origin: Anc Greek

αν/an-/(=privative, “not”)

+(-ίριδα)/irida>ίρις/ιris(=rainbow)>ίριδος/iridos

Coined/History
Ίρις/Iris(mythology)(=Iris was the Greek  goddess of the rainbow giving her name to the eye’s iris due to its many colours. ).

Definition

Aniridia is the medical condition which is characterized by a the absence or abnormal development of iris (the coloured part of the eye).