VISOR

A visor is a surface that protects the eyes, such as shading them from the sun or other bright light or protecting them from objects. Types of visors include:

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• A type of hat consisting only of a visor and a way to fasten it to the head.
• The transparent or semi-transparent front part of a motorcycle crash helmet
• Any such vertical or horizontal surface on any hat or helmet (called a peak in British English).
• The part of a helmet in a suit of armor that protects the eyes.
• Devices in an automobile that the driver or front passenger can lower over part of the windshield to block the sun.