Pronunciation: (brat'is), [key]
—n., v., -ticed, -tic•ing.
1. a partition or lining, as of planks or cloth, forming an air passage in a mine.
2. (in medieval architecture) any temporary wooden fortification, esp. at the top of a wall.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.