louvered

adjective

lou·​vered

variants or louvred

-və(r)d 

1

: set sloping in the manner of the boards or slats of a louver

louvered wooden shutters are very much a part of almost every dwelling

—Harold Sinclair

2

: furnished with louvers

has … controlled ventilation and diffused lighting from a louvered ceiling

—Architectural Review

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