Pterygium

[(p)tә'ridʒiәm]

解释:

(noun.) either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pinguecula.

手打:萨曼莎--From WordNet

解释:

(n.) A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.

丹尼整理