A brick made with one long corner rounded or angled, used for sills and corners. See also: Brick
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
bull header, bull head
1. In masonry, a header with one corner rounded; used as a quoinin brick window sills and at doorways.
2. A header which is laid on edge so that the end of the masonry unit is exposed.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.