dioptre

英 [daɪ'ɒptə(r)] 美 [daɪ'ɑːptər]

• n. 屈光度
• = diopter(美).

英英释义

Noun:

1. 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

近反义词

【近义词】

• diopter 屈光度