'Irruptive' definitions:

Definition of 'irruptive'

adjective

Of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro [syn: irruptive, plutonic]

Definition of 'Irruptive'

From: GCIDE

Irruptive \Ir*rup"tive\, a. Rushing in or upon. [1913 Webster]

Synonyms of 'irruptive'

From: Moby Thesaurus

advancing,
assailing,
assaulting,
attacking,
charging,
driving,
entering,
in,
inbound,
incoming,
incursionary,
incursive,
inflooding,
inflowing,
ingoing,
ingressive,
inpouring,
intrusive,
invading,
invasionary,
invasive,
inward,
inward-bound,
thrusting

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