verb (used without object)

verb (used with object)

to release violently; burst forth with: She erupted angry words.
(of a volcano, geyser, etc.) to eject (matter).

Origin of erupt

1650–60; < Latin ēruptus burst forth, broken out (past participle of ērumpere), equivalent to ē- e-1 + ruptus, past participle of rumpere to break, rupture
Related formse·rupt·i·ble, adjectivepre·e·rupt, verb (used without object)re·e·rupt, verb (used without object)un·e·rupt·ed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for erupt

Contemporary Examples of erupt

Historical Examples of erupt

  • At the same moment the earth began to erupt fire and smoke and steel.

  • From beneath it, the potential troglodyte, that lurks in us all, is ready enough to erupt.

    The Paliser case

    Edgar Saltus

  • Shann drew his legs under him, ready to erupt into a counter-offensive.

    Storm Over Warlock

    Andre Norton

  • He is evidently preparing to erupt, which he does at intervals of several days.

    A Summer's Outing

    Carter H. Harrison

  • It was immense, but it might erupt through a dozen forced openings.

British Dictionary definitions for erupt



to eject (steam, water, and volcanic material such as lava and ash) violently or (of volcanic material, etc) to be so ejected
(intr) (of a skin blemish) to appear on the skin; break out
(intr) (of a tooth) to emerge through the gum and become visible during the normal process of tooth development
(intr) to burst forth suddenly and violently, as from restraintto erupt in anger
Derived Formseruptible, adjectiveeruption, noun

Word Origin for erupt

C17: from Latin ēruptus having burst forth, from ērumpere, from rumpere to burst
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for erupt

1650s, of diseases, etc., from Latin eruptus, past participle of erumpere "to break out, burst" (see eruption). Of volcanoes, from 1770. Related: Erupted; erupting.

Online Etymology Dictionary, © 2010 Douglas Harper

erupt in Medicine




To break through the gums in developing. Used of teeth.
To appear on the skin. Used of a rash or blemish.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.