a low wall or railing along the edge of a balcony, roof, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(1) A low, unbroken wall enclosing the roof of a building, terrace, balcony, quay, bridge, or other structure. Parapets often serve as bases for decorative vases and statues.
(2) A wall situated atop a dam, mole, dike, or similar structure to protect it from wave erosion. Also, the wall in canal locks enclosing the area adjacent to the lock chamber.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
A low retaining wall at the edge of a roof, bridge, porch, or other structure.
An elevation of earth or material which is thrown up in front of a trench or emplacement to protect the occupants from fire and observation, and over which fire may be delivered.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
1. A low guarding wall at any point of sudden drop, as at the edge of a terrace, roof, battlement, balcony, etc.
2. A defense wall.
3. In an exterior wall, fire wall, or party wall, the part entirely above the roof.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.