glaucoma

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an eye disease that damages the optic nerve and impairs vision (sometimes progressing to blindness) (Freq. 1)
- contrary to popular belief, glaucoma is not always caused by elevated intraocular pressure
• Hypernyms:
eye disease
• Hyponyms:
acute glaucoma, closed-angle glaucoma, angle-closure glaucoma, normal tension glaucoma, chronic glaucoma, open-angle glaucoma