irruption
noun 3
Definitions
noun
1
The action of irrupting or breaking into; a violent entry or invasion; an inbreaking; an intrusion.
The Trojan irruption into the Greek camp is related in Book XV of the Iliad.
[I]t was not till arts and ſciences began to revive after the irruption of the Barbarians into Europe, that any thing of this kind appeared.
2
An abrupt increase of an animal population.
Extreme rainfall events predict irruptions of rat plagues in central Australia.
3
An abrupt increase in the size of a movement or organization.
How can we explain this irruption of young people self-identifying as socialists?
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