erupt Definition

erupt
verb, intr erupted, erupting

1a. Said of a volcano: to throw out lava, ash and gases.
1b. (of lava, ash, and gases) be thrown out of a volcano.

Thesaurus: explode, burst, spew, spout, gush, discharge, vomit, belch.
2. To break out suddenly and violently.
3. Said of a skin blemish or rash: to appear suddenly and in a severe form.
4. Said of a tooth: to emerge through the gum.

Derivative: eruption

The process of erupting, especially by a volcano.
Thesaurus: explosion, outburst, discharge, venting, ejection.

A sudden or violent breaking out.
Thesaurus: outbreak, rash, inflammation.

Derivative: eruptive
adj

Etymology: 17c: from Latin erumpere, eruptum to break out.