#mortise_joint__mortisejoint__mortise-and-tenon_joint__mortiseandtenonjoint  a joint made by inserting tenon on one piece into mortise holes in the other
  supertype:  joint  junction by which parts or objects are joined together
  part:  mortise  tenon
  subtype:  dovetail_joint__dovetail  a mortise joint formed by interlocking tenons and mortises
  subtype:  tongue_and_groove_joint  a mortise joint made by fitting a projection on the edge of one board into a matching groove on another board

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