Ir*rup"tion (?), n. [L.
irruptio: cf. F. irruption. See Irrupted.]
1. A bursting in; a sudden, violent rushing
into a place; as, irruptions of the sea.
Lest evil tidings, with too rude irruption
Hitting thy aged ear, should pierce too deep.
Milton.
2. A sudden and violent inroad, or entrance
of invaders; as, the irruptions of the Goths into Italy.
Addison.
Syn. -- Invasion; incursion; inroad. See
Invasion.