- to burst forth: Molten lava erupted from the top of the volcano.
- (of a volcano, geyser, etc.) to eject matter.
- to break out of a pent-up state, usually in a sudden and violent manner: Words of anger erupted from her.
- to break out in a skin rash: Hives erupted all over his face and hands.
- (of teeth) to grow through surrounding hard and soft tissues and become visible in the mouth.
- to release violently; burst forth with: She erupted angry words.
- (of a volcano, geyser, etc.) to eject (matter).
Origin of erupt
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unerupted
They spoke of these masses as “unerupted lavas”; and undoubtedly in innumerable instances they were right.
- 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
C17: from Latin ēruptus having burst forth, from ērumpere, from rumpere to burst
Word Origin and History for unerupted
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
- 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.