| 词汇 | cornea |
| 释义 | corneaWord family adjectivecornealnouncornea Biology, Human cor·ne·a /ˈkɔːniə $ ˈkɔːr-/ noun [countableC] HBthe transparent protective covering on the outer surface of your eye 〔眼球的〕角膜 —corneal adjectiveadj Examples from the Corpus cornea• Now, more than 100 banks across the country supply 40,000 corneas per year.• a cornea transplant• The ring is virtually invisible around the central cornea which is the critical area for clear vision.• Even human corneas do not work without effort.• This change could have created a severe shortage of corneas and other tissues in California, said Ward.• Instead, Mr Choyce implants a delicate lens between the lens of the eye and the cornea.• Actual blindness occurs only after years and years, and is caused by infestation of the cornea - which eventually becomes opaque.• A tendency to accumulate sticky mucus on the cornea removed by blinking.• It had the immediate effect, he said, of cutting the volume of usable corneas in half. (1300-1400) Medieval Latin Latin, “horny”, from cornu “horn”; because its structure is like horn |
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