Английский Этимологический словарь - astigmatism
Связанные словари
Astigmatism
astigmatism
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1.
~ n difficulty in seeing clearly that is caused by a change in the inner shape of the eye - astigmatic adj ...Longman Dictionary of Contemporary English
2.
If someone has astigmatism, the front of their eye has a slightly irregular shape, so they cannot see properly. N-UNCOUNT ...Collins COBUILD Advanced Learner's English Dictionary
3.
noun Date: 1846 1. a defect of an optical system (as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image 2. a defect of vision due to ~ of the refractive system of the eye and especially to corneal irregularity 3. distorted understanding suggestive of the blurred vision of an astigmatic person ...Merriam-Webster Collegiate Dictionary
4.
n. a defect in the eye or in a lens resulting in distorted images, as light rays are prevented from meeting at a common focus. Derivatives astigmatic adj. Etymology: A-(1) + Gk stigma -matos point ...Толковый словарь английского языка Oxford English Reference
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