Sinhala Dictionary definitions for dioptre
dioptre 🔊
dioptre : ඩයෝප්ටරය
dioptre : සන්ධාන වත්ර දර්ශකය
dioptre definition
Noun. A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.