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A structural feature, enclosing the sides and top of a doorway, window, fireplace or similar opening, often highly ornamental.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
A structural feature, often ornamental, enclosing the sides and top of a doorway, window, fireplace, or similar opening. The top piece or lintel is called the transverse and the side pieces or jambs the ascendants.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.