FromFrenchéruptif.^[1] Bysurface analysis,erupt +‎-ive.

• IPA^(key): /ɪˈɹʌptɪv/

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eruptive (comparativemoreeruptive,superlativemosteruptive)

1. Thaterupts or bursts forth.
   • a.1749 (date written),James Thomson, “Summer”, inThe Seasons, London: […] A[ndrew] Millar, and sold byThomas Cadell, […], published1768,→OCLC,page88, lines1128–1130:

     ’Tis liſtening fear, and dumb amazement all: / When to the ſtartled eye the ſudden glance / Appears far ſouth,eruptive thro’ the cloud;[…]

2. Accompanied byeruptions.

   aneruptive fever

3. (geology) Produced by eruption.

   eruptive rocks, such as the igneous or volcanic

   • 1895,J[ohn] W[esley] Powell, “The Valley of the Colorado”, inCanyons of the Colorado, Meadville, PA: Flood & Vincent; republished asThe Exploration of the Colorado River and Its Canyons, New York:Dover,1961,→ISBN,→OCLC,page35:

     The region is further diversified by short ranges oferuptive mountains.

eruptive (pluraleruptives)

1. An eruptive rock, one produced by eruption.

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eruptive

1. inflection oferuptiv:
   1. strong/mixednominative/accusativefemininesingular
   2. strongnominative/accusativeplural
   3. weaknominative all-gendersingular
   4. weakaccusativefeminine/neutersingular

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