[{"word":"dioptre","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A 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.","synonyms":[],"antonyms":[]},{"definition":"The dioptre adjustment mechanism of a pair of binoculars.","synonyms":[],"antonyms":[]},{"definition":"Any lens system, such as a telescope.","synonyms":[],"antonyms":[]},{"definition":"A theodolite or similar surveyor’s angle measuring device.","synonyms":[],"antonyms":[]},{"definition":"An alidade.","synonyms":[],"antonyms":[]},{"definition":"A surgical speculum.","synonyms":[],"antonyms":[]},{"definition":"An instrument for drawing the skull by projections.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/diopter","https://en.wiktionary.org/wiki/dioptre"]}]