Exclusion \Ex*clu"sion\, n. [L. exclusio: cf. F. exclusion. See Exclude.]

1. The act of excluding, or of shutting out, whether by thrusting out or by preventing admission; a debarring; rejection; prohibition; the state of being excluded.

His sad exclusion from the doors of bliss. --Milton.

The exclusion of the duke from the crown of England and Ireland. --Hume.

2. (Physiol.) The act of expelling or ejecting a fetus or an egg from the womb.

3. Thing emitted. --Sir T. Browne.

Source: Webster's Revised Unabridged Dictionary (1913)