keratectasia ker·a·tec·ta·si·a (kěr’ə-těk-tā’zē-ə, -zhə)
A thinning and herniation of the cornea.


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    [ker-uh-tek-tuh-mee] /ˌkɛr əˈtɛk tə mi/ noun, plural keratectomies. Surgery. 1. excision of part of the cornea. keratectomy ker·a·tec·to·my (kěr’ə-těk’tə-mē) n. Excision of a portion of the cornea.

  • Keratin

    [ker-uh-tin] /ˈkɛr ə tɪn/ noun 1. a scleroprotein or albuminoid substance, found in the dead outer skin layer, and in horn, hair, feathers, hoofs, nails, claws, bills, etc. /ˈkɛrətɪn/ noun 1. a fibrous protein that occurs in the outer layer of the skin and in hair, nails, feathers, hooves, etc n. basic substance of horns, […]

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