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louver
noun
- an open turret or lantern on the roof of a medieval building
- a window or opening furnished with a series of overlapping, horizontal slats arranged so as to admit light and air but shed rain water outward
- any of these slatsalso louver board
- any similar arrangement of slats or fins, often adjustable, used to control ventilation, light intensity, etc.
- a ventilating slit
Also louvre
Related Forms:
- louvered adjective
See louver in American Heritage Dictionary 4
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