·noun One who, or that which, joints.
II. Jointer ·noun The longest plane used by a joiner.
III. Jointer ·noun A tool for pointing the joints in brickwork.
IV. Jointer ·noun A bent piece of iron inserted to strengthen the joints of a wall.
V. Jointer ·noun A long stationary plane, for plaining the edges of barrel staves.
VI. Jointer ·noun A plane for smoothing the surfaces of pieces which are to be accurately joined.