n. (also vizor) 1 a a movable part of a helmet covering the face. b hist. a mask. c the projecting front part of a cap. 2 a shield (fixed or movable) to protect the eyes from unwanted light, esp. one at the top of a vehicle windscreen. visored adj. visorless adj.
[ ME f. AF viser, OF visiere f. vis face f. L visus: see VISAGE ]