Junc"tion (?), n. [L. junctio, fr. jungere, junctum, to join: cf. F. jonction. See Join.]
The act of joining, or the state of being joined; union; combination; coalition; as, the junction of two armies or detachments; the junction of paths.
The place or point of union, meeting, or junction; specifically, the place where two or more lines of railway meet or cross.
Junction plate Boilers, a covering or break-join plate riveted to and uniting the edges of sheets which make a butt joint. -- Junction rails Railroads, the switch, or movable, rails, connecting one line of track with another.
© Webster 1913.