explosion

[ ik-sploh-zhuh n ]
/ ɪkˈsploʊ ʒən /

noun

an act or instance of exploding; a violent expansion or bursting with noise, as of gunpowder or a boiler (opposed to implosion).
the noise itself: The loud explosion woke them.
a violent outburst, as of laughter or anger.
a sudden, rapid, or great increase: a population explosion.
the burning of the mixture of fuel and air in an internal-combustion engine.
Phonetics. plosion.

Origin of explosion

1615–25; < Latin explōsiōn- (stem of explōsiō), equivalent to explōs(us) driven off by clapping (past participle of explōdere to explode) + -iōn- -ion

Related forms

post·ex·plo·sion, adjectivepre·ex·plo·sion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for explosion

explosion

/ (ɪkˈspləʊʒən) /

noun

the act or an instance of exploding
a violent release of energy resulting from a rapid chemical or nuclear reaction, esp one that produces a shock wave, loud noise, heat, and lightCompare implosion (def. 1)
a sudden or violent outburst of activity, noise, emotion, etc
a rapid increase, esp in a population
phonetics another word for plosion

Word Origin for explosion

C17: from Latin explōsiō, from explōdere to explode
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

Science definitions for explosion

explosion

[ ĭk-splōzhən ]

A violent blowing apart or bursting caused by energy released from a very fast chemical reaction, a nuclear reaction, or the escape of gases under pressure.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.