from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The action of irrupting or breaking into; a violent entry or invasion; an inbreaking; an intrusion.
  • n. An abrupt increase of numbers of a particular animal.

from the GNU version of the Collaborative International Dictionary of English

  • n. A bursting in; a sudden, violent rushing into a place.
  • n. A sudden and violent inroad, or entrance of invaders.

from The Century Dictionary and Cyclopedia

  • n. A bursting in; a breaking or rushing into a place; a sudden invasion or incursion.
  • n. Synonyms Foray, raid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a sudden violent spontaneous occurrence (usually of some undesirable condition)
  • n. a sudden sharp increase in the relative numbers of a population
  • n. a sudden violent entrance; a bursting in


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin irruptio.


  • The white, two-foot-tall birds, which live in the Arctic the rest of the year, are known to fly south in large numbers every few winters in what is known as an irruption.

    NYT > Home Page

  • And should the "political" be defined as the irruption of something that is denied recognition?

    Blogbot - forsiden

  • Charlotte is poorly with cold and toothache attended with a general kind of irruption on the skin.

    Letter 298

  • This massive bird migration is called an "irruption", and apparently an irruption of this proportion is extremely rare.

    Archive 2005-03-01

  • The irruption followed larger, multiple border-rushings three weeks ago on Nabka "catastrophe" Day, following the anniversary of Israel's independence.

    The Syrian Diversion

  • The mullahs have appointed themselves the enemy of fun; as a result, wherever fun herniates into view, it is a politicized irruption of defiance.

    Iran Bans Valentine's Day

  • And we were getting our share when there occurred a new irruption on the scene.


  • The irruption of the horses — illustrating their farness, their closeness, their threat, their beauty — shows them to be, as Armitage says, "unbiddable."

    Vendler on Armitage: the willingness not to make a point…not to be witty

  • The Vaccine inoculation had been talkd of, and intended some time past; the Infant three weeks old has now the smallpox irruption, but slightly.

    Letter 99

  • Beyond a general rise in land values, Oakland had not acknowledged his irruption on the financial scene.

    Chapter XVII


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