monocle
noun /ˈmɒnəkl/
/ˈmɑːnəkl/
- a single glass lens for one eye, held in place by the muscles around the eye and used by people in the past to help them see clearly
单片眼镜 词源mid 19th cent.: from French (earlier in the sense ‘one-eyed’), from late Latin monoculus ‘one-eyed’.