The portion of a flat slab or flat plate that is thickened throughout the area surrounding the top of the column, to reduce the magnitude of shear stress.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
On the lower side of a flat concrete slab, the thickened portion which surrounds a column, column capital, or bracket.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.