- of or relating to the eye or vision（与）眼睛（有关）的, （与）视觉（有关）的。
1
- a lens or other optical component in an optical instrument（光学仪器的）镜头; 光学部件。
2
- archaic or humorous the eye〈古或幽默〉眼睛。
3
- Brit. trademark a device fastened to the neck of an inverted bottle for measuring out spirits〈英, 商标〉奥普迪克量杯（系在倒置酒瓶瓶颈上的烈酒量杯）。
词源
late Middle English: from French optique or medieval Latin opticus, from Greek optikos, from optos 'seen'.