persiana, veneziana, basculante
1. a window blind with horizontal slats that can be tilted to control light and airflow
She adjusted the louvers to let in more sunlight.
Ela ajustou as venezianas para deixar entrar mais luz solar.
2. an opening or arrangement of slats in a door, wall, or window for ventilation
The louver in the bathroom door allows air circulation.
A basculante na porta do banheiro permite circulação de ar.
3. a device with angled slats used to direct airflow in ventilation systems
The air conditioning unit has adjustable louvers.
A unidade de ar-condicionado tem venezianas ajustáveis.
In Brazil, louvered windows (venezianas) are extremely common in residential and commercial architecture due to the tropical climate, allowing for light control and ventilation. The term 'persiana' is often used interchangeably, though veneziana is more specific to the horizontal slat design. In the USA, louvers are primarily functional architectural elements found in air conditioning systems, attics, and modern building designs.
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