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diatreme

 - 2 dictionary results

di⋅a⋅treme

  [dahy-uh-treem]
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–noun Geology.
a volcanic vent produced in a solid rock structure by the explosive energy of gases in magmas.
Origin:
1930–35; dia- + Gk trêma hole
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Science Dictionary
diatreme   (dī'ə-trēm')  Pronunciation Key 
A volcanic pipe, filled with breccia, formed by a subterranean gaseous explosion. See illustration at batholith.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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