A violent ejection, such as the spurting out of lava from a volcano. / A sudden release of pressure or tension. / An infection of the skin resulting in a rash or blemishing.

plural of eruption

eruptive

present participle of erupt

Third-person singular simple present indicative form of erupt

simple past tense and past participle of erupt

plural of eruptive

An eruptive rock, one produced by eruption.

That erupts or bursts forth. / Accompanied by eruptions. / (geology) Produced by eruption.

(intransitive) To eject something violently (such as lava or water, as from a volcano or geyser). / (intransitive) To burst forth; to break out.