<p><strong>Noun</strong></p><ul><li>A partition or lining, as of planks or cloth, forming an air passage in a mine.</li><li>(In medieval architecture) any temporary wooden fortification, especially at the top of a wall.</li></ul><p><strong>Verb</strong></p><ul><li>(Used with object) brat·ticed, brat·tic·ing: to provide with a brattice (often followed by up).</li></ul>