diopter, dioptre -- (a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists)
dictionary, definition of, free online dictionary, online dictionary, English dictionary, dict, diction, dictonary, glossary, define, definitions, meaning, word of the day, spelling, pronunciation, dictio, dictiona, dic, dicti, dictionar
(TTS Sound)