\Con*cur"rent\, a. [F. concurrent, L. concurrens, p.
pr. of concurrere.]
1. Acting in conjunction; agreeing in the same act or
   opinion; contributing to the same event or effect;
   co["o]perating.
         I join with these laws the personal presence of the
         kings' son, as a concurrent cause of this
         reformation.                          --Sir J.
                                               Davies.
         The concurrent testimony of antiquity. --Bp.
                                               Warburton.
2. Conjoined; associate; concomitant; existing or happening
   at the same time.
         There is no difference the concurrent echo and the
         iterant but the quickness or slowness of the return.
                                               --Bacon.
         Changes . . . concurrent with the visual changes in
         the eye.                              --Tyndall.
3. Joint and equal in authority; taking cognizance of similar
   questions; operating on the same objects; as, the
   concurrent jurisdiction of courts.
4. (Geom.) Meeting in one point.
Syn: Meeting; uniting; accompanying; conjoined; associated;
     coincident; united.

\Con*cur"rent\, n.
1. One who, or that which, concurs; a joint or contributory
   cause.
         To all affairs of importance there are three
         necessary concurrents . . . time, industry, and
         faculties.                            --Dr. H. More.
2. One pursuing the same course, or seeking the same objects;
   hence, a rival; an opponent.
         Menander . . . had no concurrent in his time that
         came near unto him.                   --Holland.
3. (Chron.) One of the supernumerary days of the year over
   fifty-two complete weeks; -- so called because they concur
   with the solar cycle, the course of which they follow.