[ dahy-uh-treem ]
/ ˈdaɪ əˌtrim /
a volcanic vent produced in a solid rock structure by the explosive energy of gases in magmas.
Origin of diatreme
1930–35; dia- + Greek trêma hole
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for diatreme
Most maars have low rims composed of a mixture of loose fragments of volcanic rock and rocks torn from the walls of the diatreme.Volcanoes|Robert I. Tilling
Science definitions for diatreme
[ dī′ə-trēm′ ]
A volcanic pipe, filled with breccia, formed by a subterranean gaseous explosion. See illustration at batholith.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.