noun a wire cap for the smokestack of a locomotive.
2. cowl ·noun a vessel carried on a pole between two persons, for conveyance of water.
3. cowl ·noun a monk's hood;
usually attached to the gown. the name was also applied to the hood and garment together.
4. cowl ·noun a cowl-shaped cap, commonly turning with the wind, used to improve the draft of a chimney, ventilating shaft, ·etc.