(construction) A ventilator located at the ridge that allows the escape of warm and/or moist air from the attic area or rafter cavity.

A vertical pipe that provides ventilation to a building's drainage system

(architecture) Louvres or strips of wood or metal used as windbreaks that allow light and air in, often seen in belfries. / A sloping roof. / A metal chimney cap.

An opening, possibly covered by a grate or grill, possibly ducted, that allows air to circulate. / A device or valve that allows to air to be evacuated from a radiator or pipe in a heating system.

a hot spring, on the floor of the ocean, mostly along the central axes of the mid-ocean ridges, where heated fluids emerge from fissures in the Earth's crust.

plural of abat-vent

An abnormal behaviour of birds, primarily commercial egg-laying hens, characterised by pecking damage to the cloaca, the surrounding skin and underlying tissue.

plural of air vent

plural of vent stack

plural of hydrothermal vent