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astigmatism

美音:[əs´tıgmə´tızəm ]点这儿播放单词美音发声
英音:[əs´tıgmə´tızəm ]点这儿播放单词英音发声
n.散光,因偏差而造成的曲解或错判

难易程度:

astigmatism为短语/超纲词汇

词形变化:

副词:astigmatically 形容词:astigmatic

近义词, 同义词

astigmatism


/ə'stɪgmətɪzəm; ə`stɪˇmə,tɪzəm/
n [U] defect in an eye or a lens that prevents correct focusing (眼睛)散光, 乱视; (透镜)像散性, 像散现象.

astigmatism


n[U]
[Date: 1800-1900; Origin:A-2 + Greek stigma 'mark, point'; because there is no point at which light focuses]
difficulty in seeing clearly that is caused by a change in the inner shape of the eye
图例解释