louvres

noun
  1. Plural of louvre: a set of thin, parallel slats or blades arranged at an angle in a frame, used to allow air or light to pass while blocking direct view or weather.
  2. Usage: Also spelled 'louvers' in U.S. English; Commonly used in architecture and ventilation contexts
  3. A window or opening fitted with louvres; a louvred window or door.
  4. Usage: British English usage

Examples