An abat-son (plural usually abat-sons) is an architectural device constructed to reflect or direct sound in a particular direction. It consists of large louvers. The term is commonly used to refer to angled louvers in a bell tower or belfry designed to redirect sound or to prevent ingress of water.[1]
Illustration of an abat-son
Abat-son can also mean a louver or board used in the device.[2][3] These boards or sheets are typically made of wood or metal.[4]
The term comes from the French term of the same name, which literally means "to strike down" (abat) the "sound" (son) or "sounds" (sons).[5][6]
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