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Definition of cornea noun from the Oxford Advanced Learner's Dictionary

cornea

noun
 
/ˈkɔːniə/
 
/ˈkɔːrniə/
(anatomy)
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  1. the clear layer that covers and protects the outer part of the eyeTopics Bodyc2
    Word Originlate Middle English: from medieval Latin cornea tela ‘horny tissue’, from Latin cornu ‘horn’.
See cornea in the Oxford Advanced American Dictionary
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