1. a projection formed on the end of a timber or the like for insertion into a mortise of the same dimensions.

verb (used with object)

  1. to provide with a tenon.
  2. to join by or as by a tenon.
  3. to join securely.

  1. a combining form meaning “tendon,” used in the formation of compound words: tenotomy.


  1. the projecting end of a piece of wood formed to fit into a corresponding mortise in another piece

verb (tr)

  1. to form a tenon on (a piece of wood)
  2. to join with a tenon and mortise

combining form

  1. tendontenosynovitis

n.projection inserted to make a joint, c.1400, from Middle French tenon “a tenon,” from Old French tenir “to hold” (see tenet). pref.

  1. Tendon:tenotomy.
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