Definition of "windscreen"

(Britain, Ireland, Australia, New Zealand, Singapore) A transparent screen made of glass, located at the front of a vehicle in order to protect its occupants from the wind and weather.  examples

A cover for a microphone to exclude airy noises such as wind and breathing.  examples

(military) A lightweight aerodynamic fairing mounted on the nose of an armor-piercing shell to reduce drag and increase range.

(transitive) To install a windscreen on.  examples