the GNU version of the Collaborative International Dictionary of English
n. The upper story of the nave of a church, containing windows, and rising above the aisle roofs.
The Century Dictionary and Cyclopedia
n. The upper story of a church, perforated by a range of windows, which form the principal source of light for the central portions of the building.
n.
n. The raised part of the roof of a railroad-car, which contains the ventilating windows.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. part of an interior wall rising above the adjacent roof with windows admitting light
Word Usage
"The solid wall never touches the roof allowing the house to have a private face to the street while maintaining views through the clearstory towards the forest."