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To release mechanical, chemical, or nuclear energy by the sudden production of gases in a confined space: The bomb exploded.
(verb-intransitive)
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To burst violently as a result of internal pressure.
(verb-intransitive)
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To shatter with a loud noise: The vase exploded into tiny pieces when it hit the floor.
(verb-intransitive)
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To make an emotional outburst: My neighbor exploded in rage at the trespassers.
(verb-intransitive)
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To increase suddenly, sharply, and without control: The population level in this area has exploded during the past 12 years.
(verb-intransitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.