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explosion

[ik-sploh-zhuh n] /ɪkˈsploʊ ʒən/
noun
1.
an act or instance of exploding; a violent expansion or bursting with noise, as of gunpowder or a boiler (opposed to implosion).
2.
the noise itself:
The loud explosion woke them.
3.
a violent outburst, as of laughter or anger.
4.
a sudden, rapid, or great increase:
a population explosion.
5.
the burning of the mixture of fuel and air in an internal-combustion engine.
6.
Phonetics, plosion.
Origin
1615-1625
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
postexplosion, adjective
preexplosion, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ex-plosion

explosion

/ɪkˈspləʊʒən/
noun
1.
the act or an instance of exploding
2.
a violent release of energy resulting from a rapid chemical or nuclear reaction, esp one that produces a shock wave, loud noise, heat, and light Compare implosion (sense 1)
3.
a sudden or violent outburst of activity, noise, emotion, etc
4.
a rapid increase, esp in a population
5.
(phonetics) another word for plosion
Word Origin
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
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Word Origin and History for ex-plosion

explosion

n.

1620s, "action of driving out with violence and noise," from French explosion, from Latin explosionem (nominative explosio), noun of action from past participle stem of explodere "drive out by clapping" (see explode for origin and sense evolution). Meaning "going off with violence and noise" is from 1660s. Sense of "rapid increase or development" is first attested 1953.

Online Etymology Dictionary, © 2010 Douglas Harper
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ex-plosion in Science
explosion
  (ĭk-splō'zhən)   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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