a movable part of a helmet that can be pulled down to cover the face
(头盔的)面甲,面罩。
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。
〈北美〉 帽舌,遮阳。
〈史〉 面具。
"Middle English: from Anglo-Norman French