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WordsAmEn
American Word:
diopter
diopter noun optics a unit of measure of the refractive power of a lens, having the dimension of the reciprocal of length and a unit equal to the reciprocal of one meter. optika dioptria.
British Word:
dioptre
dioptre noun optics a unit of measure of the refractive power of a lens, having the dimension of the reciprocal of length and a unit equal to the reciprocal of one metre. optika dioptria.
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