In computer science, used to describe things which happen at the same time, especially several programs running at the same time.

The reason for having a special word for this is that programming becomes much more complex if programs run concurrently; issues such as mutual exclusion and locking arise, and if you ignore them, you may get bugs which are impossible to hunt down.

Con*cur"rent (?), a. [F. concurrent, L. concurrens, p. pr. of concurrere.]


Acting in conjunction; agreeing in the same act or opinion; contibuting to the same event of effect; cooperating.

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.


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.


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.


© Webster 1913.

Con*cur"rent, n.


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.


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.


© Webster 1913.

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