from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A system of insulated windows (and doors) having two parallel layers of glass separated by an air space
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a window with two panes of glass and a space between them; reduces heat and noise transmission through the window
double + glazing (Wiktionary)