spandrel wall[′span·drəl ‚wȯl]
A wall on the outer surface of a vault to fill the spandrels.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A wall built on the extrados of an arch, filling the spandrels. See also: screen wall
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
1. A wall built on the extrados of an arch, filling in the spandrels.
2. That portion of a skeleton wall above the head of a window or door.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.