n.

1. 【史】（头盔的）面甲
2. 【英】帽舌；眼罩；遮阳板

vt.

1. （用面甲等）遮护

n.

1. a movable part of a helmet that can be pulled down to cover the face.
2. a screen for protecting the eyes from unwanted light, especially one at the top of a vehicle windscreen.
3. N. Amer. a stiff peak at the front of a cap.
4. historical a mask.