n. [ L. irruptio: cf. F. irruption. See Irrupted. ] [ 1913 Webster ]
1. A bursting in; a sudden, violent rushing into a place; as, irruptions of the sea. [ 1913 Webster ]
Lest evil tidings, with too rude irruption Hitting thy aged ear, should pierce too deep. Milton. [ 1913 Webster ]
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. [ 1913 Webster ]