| 释义 |
eyecup
\ˈ ̷ ̷ˌ ̷ ̷\ noun
1.
a. : a small oval cup that has a rim curved to fit the orbit of the eye and that is used for bathing the eyes or for applying liquid remedies to them
b. : an oval part shaped like a cup that extends backward from each of the rims of a pair of goggles and that is designed to fit snugly about the orbit of the eye so as to give the eye added protection from sparks or other hazards
2. : a round hollowed piece with a peephole in it on the rear sight of a firearm |