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Projection of a tread of a stair beyond the riser below it.
A transverse, horizontal motion of a locomotive that exerts a lateral force on the track.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The rounded edge of a horizontal surface that projects beyond the vertical surface below, such as the projection of a tread beyond the riser.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
The prominent, usually rounded, horizontal edge which extends beyond an upright face below; as the projection of a tread beyond a riser.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.