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combination lock

a lock opened by rotating one or more specially marked dials a given number of times through a particular set of positions in a prescribed order and direction.
Origin of combination lock
1850-55 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for combination lock
  • The top of the sphere was adorned with a combination lock.
  • He walked over to a steel door and rapidly twirled the combination lock to open it.
  • Comprehensive knowledge of lock construction and the principles of key and combination lock operation.
  • Health records will be stored by the contractor under combination lock, limiting access.
  • Radiological sources are housed in the source cabinet, which is kept locked with a combination lock.
  • The drawer with the combination lock is referred to as the control drawer.
  • If there is a combination lock, only office personnel should open the lock for visitors.
  • Within a security cabinet with a built-in three position changeable combination lock.
  • The best type is a combination lock so that as the mothers change or on a quarterly basis, the combination can be changed.
  • The gate has a combination lock, and house key is located in a lock box on the kitchen door.
British Dictionary definitions for combination lock

combination lock

a type of lock that can only be opened when a set of dials releasing the tumblers of the lock are turned to show a specific sequence of numbers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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