| Eruption 1. (n.) The act of breaking out or bursting forth; as: (a) A violent throwing out of flames, lava, etc., as from a volcano of a fissure in the earth's crust. (b) A sudden and overwhelming hostile movement of armed men from one country to another. Milton. (c) A violent commotion. 2. (n.) That which bursts forth. 3. (n.) A violent exclamation; ejaculation. 4. (n.) The breaking out of pimples, or an efflorescence, as in measles, scarlatina, etc. Thesaurus Entries access, belch, blaze, blaze of temper, blowout, blowup, breaking out, burst, cascade, convulsion, cyclone, debouchment, diaper rash, discharge, disgorgement, dissiliency, drug rash, efflorescence, ejaculation, emission, eructation, explosion, expulsion, extravasation, fit, flare, flare-up, gale, gush, gust, heat rash, high words, hives, hurricane, irruption, jet, nettle rash, outbreak, outburst, outpour, papular rash, paroxysm, prickly heat, rapids, rash, rupia, rush, sally, scene, seizure, skin eruption, spasm, spate, spew, spout, spouting, spurt, squirt, storm, tempest, tornado, torrent, upheaval, urticaria, vaccine rash, volcan, whirlwind | ![]() |