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dioptometer

(dī′äp täm′ət ər)

noun

an instrument for testing the refraction of the eye

Origin: di- + optometer

Related Forms:

dioptometry noun

See dioptometer in American Heritage Dictionary 4

noun

An instrument used for measuring ocular refraction.

Origin:

Origin: di(a)-

Origin: + opt(ic)

Origin: + -meter

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Related Forms:

diˌop·tomˈe·try noun

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