noun🔗ShareA unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters."The eye doctor said I need glasses with -2.5 diopters to correct my nearsightedness. "medicinephysicsanatomytechnicalunitChat with AIVocabulary GamePractice Reading
noun🔗ShareThe dioptre adjustment mechanism of a pair of binoculars.""The binoculars have a range of plus or minus four diopters to correct for differences in vision between my eyes." "devicetechnicalChat with AIVocabulary GamePractice Reading
noun🔗ShareAny lens system, such as a telescope."The optician used several different diopters to precisely measure the curvature of my eye and determine the correct prescription for my glasses. "physicstechnologydeviceChat with AIVocabulary GamePractice Reading
noun🔗ShareA theodolite or similar surveyor’s angle measuring device."The surveyors used diopters to precisely measure the angles of the land before construction began. "technologydevicetechnicalsciencemathChat with AIVocabulary GamePractice Reading
noun🔗ShareAn alidade."The transit's diopters, resembling a telescope's sighting device, helped the surveyor precisely align the instrument with the distant target. "devicetechnicalscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareA surgical speculum."During the eye exam, the doctor used various diopters to keep my eyelids open for a better view. "medicinedeviceanatomyChat with AIVocabulary GamePractice Reading
noun🔗ShareAn instrument for drawing the skull by projections."The anthropologist used diopters to create accurate skull drawings, helping them understand the ancient human's facial features. "anatomytechnicalmedicinedevicescienceChat with AIVocabulary GamePractice Reading
