louver(redirected from slat window)
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lou·veralso lou·vre (lo͞o′vər)
a. A framed opening, as in a wall, door, or window, fitted with fixed or movable horizontal slats for admitting air or light and often for shedding rain.
b. One of the slats used in such an opening.
c. One of the narrow openings formed by such slats.
2. A slatted, ventilating opening, as on the hood of a motor vehicle.
3. A lantern-shaped cupola on the roof of a medieval building for admitting air and providing for the escape of smoke.
[Middle English lover, skylight, chimney, from Old French, from Middle Dutch love, gallery, from Middle High German lauble.]
or lou•vre(ˈlu vər)
1. any of a series of narrow openings framed at their longer edges with slanting, overlapping fins or slats, adjustable for admitting light and air while shutting out rain.
2. a fin or slat framing such an opening.
3. a ventilating turret or lantern, as on the roof of a medieval building.
4. any of a system of slits, as in the hood of an automobile, for ventilation.
[1325–75; Middle English lover skylight < Middle French lov(i)er, of obscure orig.]