Opsiometer

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Opsiometer An instrument for measuring the limits of distinct vision in different individuals, and thus determiming the proper focal length of a lens for correcting imperfect sight.
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Century Dictionary and Cyclopedia
    • n opsiometer An optometer.
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Chambers's Twentieth Century Dictionary
    • n Opsiometer op-si-om′e-tėr an optometer.
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Etymology

Webster's Revised Unabridged Dictionary
Gr. sight + -meter,: cf. F. opsiomètre,