| 单词 | pterygium |
| 释义 | pterygium (once / 738707 pages) n WORD FAMILY pterygium USAGE EXAMPLESThe doctor diagnosed the ailment as pterygium, which he said was a common problem in the backstretch, caused by particles and extreme sun exposure. New York Times(Jun 06, 2012) Pterygium is a hypertrophic thickening of the conjunctiva of triangular shape firmly attached by its apex to the superficial layers of the cornea. Various, Encyclopaedia Britannica, 11th Edit...(2011) Pterygium: a lateral expansion of the snout of some Coleoptera. Smith, John. B., Explanation of Terms Used in Entomo...(2010) n 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 Hyper conjunctiva a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid |
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