astigmatism
英 [əˈstɪɡ.mə.tɪ.zəm]
美 [əˈstɪɡ.mə.tɪ.zəm]
- n. [眼科] 散光;[光][电子] 像散性;[光][电子] 像散现象
将“astigmatism”分解为“a”和“stigmatism”。想象一个字母“A”弯曲成眼镜的形状,用来纠正视力中的“stigmatism”,即散光。这样的视觉联想可以帮助记忆这个单词的含义。
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astigmatism 散光前缀a-, 不,非。词根stig, 点,刺,同stick. 指眼睛看东西不能聚成一点。
- astigmatism (n.)
- 1849, coined by the Rev. William Whewell (1794-1866), English polymath, from Greek a- "without" (see a- (3)) + stigmatos genitive of stigma "a mark, spot, puncture" (see stick (v.)).
- 1. Maybe you fall asleep in class because of uncorrected astigmatism.
- 也许你在课堂上睡觉是因为你的眼睛散光.
- 2. They have what is called astigmatism.
- 他们有所谓散光.
- 3. Under astigmatism even narrow parallel light beams will not combine into one point.
- 有象散存在时甚至很窄的平行光束都不能会聚在一点.
- 4. Have the nearsighted patient of astigmatism, can you adorn invisible glasses?
- 患有散光的近视患者, 能佩戴隐形眼镜 吗 ?
- 5. Astigmatism can occur in addition to nearsightedness and farsightedness.
- 散光可发生在除近视和远视.