jalousie

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A blind or shutter having adjustable horizontal slats for regulating the passage of air and light.

from The Century Dictionary.

• noun An obsolete form of jealousy.
• noun A blind or shutter made with slats, which are usually set at an angle so as to exclude the sun and rain while allowing the air to enter.
• noun plural The whole surface or inclosure of a gallery, veranda, or the like, formed of a series of slatted frames (see def. 1), of which some may be fixed and some may open on hinges.

from the GNU version of the Collaborative International Dictionary of English.

• noun A Venetian or slatted inside window blind.
• noun A window or door made of multiple glass or plastic slats, which can be opened or closed like a jalousie{1}.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun naval architecture A component in a ventilation system.
• noun Upward sloping window slats which form a blind or shutter, allowing light and air in but excluding rain and direct sun.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a window with glass louvers
• noun a shutter made of angled slats