Concurrent \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Concurrent \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.

Source: Webster's Revised Unabridged Dictionary (1913)