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Definition of Irruptive
1. Adjective. Of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro. 
Definition of Irruptive
1. a. Rushing in or upon.
Definition of Irruptive
1. [adj]
Medical Definition of Irruptive
1. Relating to or characterised by irruption. (05 Mar 2000)



