dioptrical /'daɪɒptrɪkl/ 📖 中文释义 屈光的 📘 English Definition(英文释义) a. Of or pertaining to dioptrics; assisting vision bymeans of the refraction of light; refractive; as, the dioptric system;a dioptric glass or telescope. ← dioptric system D 字母词表 dioptrics →