double-hung: Meaning and Definition of

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.