Mortise

[Sarah]

A cavity cut into a piece of timber, or other material, toreceive something (as the end of another piece) made to fit it, andcalled a tenon. Mortise and tenon (Carp.), made with a mortise andtenon; joined or united by means of a mortise and tenon; -- usedadjectively.-- Mortise joint, a joint made by a mortise and tenon.-- Mortise lock. See under Lock.-- Mortise wheel, a cast-iron wheel, with wooden clogs inserted inmortises on its face or edge; -- also called mortise gear, and coregear.