IRRUPTION
irruption
(noun) a sudden violent entrance; a bursting in; “the recent irruption of bad manners”
outbreak, eruption, irruption
(noun) a sudden violent spontaneous occurrence (usually of some undesirable condition); “the outbreak of hostilities”
irruption
(noun) a sudden sharp increase in the relative numbers of a population
Source: WordNet® 3.1
Etymology
Noun
irruption (countable and uncountable, plural irruptions)
The action of irrupting or breaking into; a violent entry or invasion; an inbreaking; an intrusion.
(ecology) An abrupt increase of an animal population.
(by extension) An abrupt increase in the size of a movement or organization.
Anagrams
• prurition
Source: Wiktionary
Ir*rup"tion, n. Etym: [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.
Source: Webster’s Unabridged Dictionary 1913 Edition