high explosive

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noun

a class of explosive, as TNT, in which the reaction is so rapid as to be practically instantaneous, used in shells and bombs.

Origin of high explosive

First recorded in 1875–80
Related formshigh-ex·plo·sive, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for high explosive

high explosive

noun

an extremely powerful chemical explosive, such as TNT or gelignite
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