ir·rupt (-r pt) intr.v. ir·rupt·ed, ir·rupt·ing, ir·rupts. 1. To break or burst in. 2. Ecology To increase rapidly and irregularly in number: In the absence of predators, the ...
MLA Style "irrupt." Webster's New World College Dictionary. 2009. Your Dictionary. 30 June 2009 <www.yourdictionary.com/irrupt> APA Style. irrupt. (2009).