What is the meaning of Windscreen?

A transparent screen made of glass, located at the front of a vehicle in order to protect its occupants from the wind and weather.

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

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

A draught screen at the side of a passenger train doorway.

To install a windscreen on.

Source: wiktionary.org