ten•onPronunciation: (ten'un), [key]
a projection formed on the end of a timber or the like for insertion into a mortise of the same dimensions. See illus. under mortise.
to provide with a tenon.
to join by or as by a tenon.
to join securely.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.