Home›Browse›L›louvered windowlouvered windowOur editors are putting together more complete content — check back in about 20 minuteslouvered windowlouvered window — nounnoun1. A window with fixed or adjustable horizontal slats that allow air flow but block1.nounDefinitionA window with fixed or adjustable horizontal slats that allow air flow but block rain.ExampleHe installed a louvered window in the bathroom for ventilation.