Dictionary
dou•ble-hung
Pronunciation: (dub'ul hung'), [key]—
adj.
1. (of a window) having two vertically sliding sashes, each closing a different part of the opening.
2. (of a window sash) sliding vertically, with a counterweight on each side.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.