What is Cowl?

Cowl definition and meaning on Dictionary terms:

a hooded garment worn by monks.
the hood of this garment.
part of a garment that is draped to resemble a cowl or hood.
the forward part of the body of a motor vehicle supporting the rear of the hood and the windshield and housing the pedals and instrument panel.
a hoodlike covering for increasing the draft of a chimney or ventilator.
a wire netting fastened to the top of the smokestack of a locomotive to prevent large sparks from being discharged; a spark arrester.