a lock housed within a mortise in a door or the like, so that the lock mechanism is covered on both sides.
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- mortise block,
- mortise chisel,
- mortise joint,
- morton grove,
- morton's syndrome
Origin of mortise lock
First recorded in 1770–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for mortise lock
A mortise-lock is fitted in a similar way, but let into a mortise (see Mortising).Woodworking for Beginners|Charles Gardner Wheeler
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