"glaucoma" in the noun sense
1. glaucoma
an eye disease that damages the optic nerve and impairs vision (sometimes progressing to blindness
"contrary to popular belief, glaucoma is not always caused by elevated intraocular pressure"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License