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(-mtr"p), n.[NL., fr. Gr. 'e°mmetros in measure, proportioned, suitable ('en in + me°tron measure) + 'w°ps, 'wpo°s, eye.] (Med.) That refractive condition of the eye in which the rays of light are all brought accurately and without undue effort to a focus upon the retina; -- opposed to hypermetropia, myopia, and astigmatism. スポンサード リンク
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