“astigmatic”的英文意思_释义_用法

单词

astigmatic

释义

astigmatic, a. Phys.|æstɪgˈmætɪk|
[f. Gr. ἀ priv. + στίγµα, -µατ- point + -ic.]
1. Pertaining to or characterized by astigmatism.
1849Todd Cycl. Anat. & Phys. IV. 1468/2 An astigmatic lens.1879G. C. Harlan Eyesight vi. 82 The astigmatic cornea..has different curvatures in directions at right angles to each other.
2. Of an artificial lens: correcting astigmatism.
1881Ophthalmic Rev. Nov. (Advt.), Every description of Astigmatic, Cylindrical and Sphero-Cylindrical Spectacle Lenses.1958Listener 6 Nov. 728/2 This distortion is immediately removed if his pictures are photographed through a one-degree astigmatic lens at an axis of fifteen degrees off the vertical.

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