from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Irrupting or tending to irrupt.
  • adj. Geology Intrusive.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having the quality of irrupting or making irruptions.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Rushing in or upon.

from The Century Dictionary and Cyclopedia

  • Bursting in; rushing in or upon anything.

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

  • adj. of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro


Sorry, no etymologies found.


  • They are unusual in that they do not 'migrate' south during the winter, but they do undergo 'irruptive dispersal', that is moving out of their breeding areas when their main prey, the lemming, suffers a declining population.


  • There are no foreseeable human-related threats to wolverines Lynx Lynx are cyclic or irruptive in the Alaskan Arctic, and in areas where snowshoe hares become periodically abundant, lynx can become abundant.

    Climate change and terrestrial wildlife management in the Alaskan Arctic

  • Ereignis is a word for that irruptive dimension, the historical point at which thought can latch onto Being: it is equally implicated in thought, being, and history.


  • The second deconstructive strategy, which Derrida identifies with French philosophy in the 1960s, affirms an absolute break with tradition, seeking to change ground in a discontinuous and irruptive fashion.


  • Once again we have a moment of irruptive violence.

    Jacques Derrida

  • They seem to be a necessary evil to be classed with smallpox, chicken-pox, yellow fever and other irruptive diseases.

    Poems for Pale People A Volume of Verse

  • In the meantime, concern and suspense and irruptive wrath had their chief abode in the inner room of Remington and Evans.

    The Sturdy Oak A composite Novel of American Politics by fourteen American authors

  • One was an irruptive craving within him to take some part in the dynamic activities of the surrounding world.

    Average Jones

  • But these were soon exchanged for rough forest growths; and out of cabbage and corn lands the irruptive forest broke into islands; and the plain was girdled with a dark green belt of distant forest.


  • Board of Health, we find other low types and stealthy diseases, such as typhoid and irruptive fevers, and there we shall find them again when the summer and autumnal pestilences have yielded place to those which belong to the indoor poisoned air in the winter.

    The People's Common Sense Medical Adviser in Plain English or, Medicine Simplified, 54th ed., One Million, Six Hundred and Fifty Thousand


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