eruptive

From French éruptif.^[1] By surface analysis, erupt +‎ -ive.

• IPA^(key): /ɪˈɹʌptɪv/

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eruptive (comparative more eruptive, superlative most eruptive)

1. That erupts or bursts forth.
   • a. 1749 (date written), James Thomson, “Summer”, in The Seasons, London: […] A[ndrew] Millar, and sold by Thomas Cadell, […], published 1768, →OCLC, page 88, lines 1128–1130:

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

2. Accompanied by eruptions.

   an eruptive 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”, in Canyons of the Colorado, Meadville, PA: Flood & Vincent; republished as The Exploration of the Colorado River and Its Canyons, New York: Dover, 1961, →ISBN, →OCLC, page 35:

     The region is further diversified by short ranges of eruptive mountains.

eruptive (plural eruptives)

1. An eruptive rock, one produced by eruption.

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eruptive

1. inflection of eruptiv:
   1. strong/mixed nominative/accusative feminine singular
   2. strong nominative/accusative plural
   3. weak nominative all-gender singular
   4. weak accusative feminine/neuter singular