visor
/ˈvaɪzə(r)/(亦作vizor)
noun
1- a movable part of a helmet that can be pulled down to cover the face（头盔的）面甲, 面罩。
1.1
- a screen for protecting the eyes from unwanted light, especially one at the top of a vehicle windscreen（尤指汽车挡风玻璃上方的）遮阳板。
1.2
- N. Amer. a stiff peak at the front of a cap〈北美〉帽舌, 遮阳。
1.3
- historical a mask〈史〉面具。
派生词
visored
adjective词源
Middle English: from Anglo-Norman French viser, from Old French vis 'face'， from Latin visus （see VISAGE）.