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eruptive

[ih-ruhp-tiv] /ɪˈrʌp tɪv/
adjective
1.
bursting forth, or tending to burst forth.
2.
pertaining to or of the nature of an eruption.
3.
Geology. noting a rock formed by the eruption of molten material.
4.
Pathology. causing or accompanied by an eruption or rash.
noun
5.
Geology. an eruptive rock.
Origin
1640-1650
1640-50; < French éruptif. See erupt, -ive
Related forms
eruptively, adverb
eruptivity, eruptiveness, noun
noneruptive, adjective
posteruptive, adjective
preeruptive, adjective
preeruptively, adverb
uneruptive, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin and History for eruptivity

eruptive

adj.

1640s; see erupt + -ive. Perhaps from French éruptif.

Online Etymology Dictionary, © 2010 Douglas Harper
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