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mortise lock

noun

  1. a lock housed within a mortise in a door or the like, so that the lock mechanism is covered on both sides.


mortise lock

noun

  1. a lock set into a mortise in a door so that the mechanism of the lock is enclosed by the door
“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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Word History and Origins

Origin of mortise lock1

First recorded in 1770–80
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Example Sentences

A mortise-lock is fitted in a similar way, but let into a mortise (see Mortising).

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mortise jointmortling