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An opening in a lock for passage of a flat metal key.
The pocket in the driven element to provide a driving surface for the key.
A groove or channel for a key in any mechanical part. Also known as key seat.
An interlocking channel or groove in a cement or wood joint to provide reinforcement.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
1. The aperture in a lock cylinder which receives the key and closely engages with it throughout its length.
2. A slot used to interlock slabs of masonry walls built at different times.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.