astigmatism /ə-stigˈmə-ti-zm/

A defect in an eye, lens or mirror, by which rays from a single point are focused as two short focal lines at right angles to each other and at different distances (also astigˈmia /-mi-ə/)

astigmatic /a-stig-matˈik/ adjective and noun

astigmatˈically adverb

• undercarriage
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• undercharged
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• undercharging
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• underclothed