Facing
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facing
[′fās·iŋ] (civil engineering)
A covering or casting of some material applied to the outer face of embankments, buildings, and other structures.
(mechanical engineering)
Machining the end of a flat rotating surface by applying a tool perpendicular to the axis of rotation in a spiral planar path.
(metallurgy)
A fine molding sand applied to the face of a mold.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Facing
A veneer of nonstructural material forming part of a wall and used as a finishing surface of a rougher or less attractive material, such as stone, terra-cotta, metal, stucco, plaster, and wood.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
facing, facework

facing
1. A veneer of nonstructural material such as stone, terra-cotta, metal, stucco, plaster, and wood used to finish the surface of a rougher or less attractive material.
2. Any material, forming a part of a wall, used as a finished surface; a revetment.
3. On thermal insulation, the protective, functional, or decorative surface applied at the outermost layer of insulation.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.