A component in a ventilation system.
A pastry with the upper side sliced before final baking to resemble a wooden slatted blind.
Upward sloping window slats which form a blind or shutter, allowing light and air in but excluding rain and direct sun.
Any of a system of slits, as in the hood of an automobile, for ventilation.
A type of turret on the roof of certain medieval buildings designed to allow ventilation or the admission of light.
A series of sloping overlapping slats or boards which admit air and light but exclude rain etc.