Mortise

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mortise

[′mȯrd·əs]
(engineering)
A groove or slot in a timber for holding a tenon.

Mortise

A rectangular slot cut into one piece of timber, into which a tenon or tongue from another piece is fitted to form a joint.

mortise

A hole, cavity, notch, slot, or recess cut into a timber or piece of other material; usually receives a tenon, but also has other purposes, as to receive a lock.
References in periodicals archive ?
But if you want to keep your home safe, there's nothing to beat a five lever mortice deadlock on the door.
The only type of joint that can be identified from the drawing is a `tusk-tenon' formed by inserting the end of one beam, shaped into a long tenon or `tusk', into a mortice, cut through the entire thickness of a second beam; the tenon protrudes far enough to be penetrated in turn by a through mortice, which holds a peg or wedge.