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lopolith

[lop-uh-lith]
noun Geology.
  1. a mass of igneous rock similar to a laccolith but concave downward rather than upward.
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Origin of lopolith

1915–20; < Greek lop(ós) shell, husk + -o- -o- + -lith
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for lopolith

lopolith

noun
  1. a saucer- or lens-shaped body of intrusive igneous rock, formed by the penetration of magma between the beds or layers of existing rock and subsequent subsidence beneath the intrusionCompare laccolith
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Word Origin

C20: from Greek lopas dish + -lith
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

lopolith in Science

lopolith

[lŏpə-lĭth]
  1. A large, bowl-shaped body of igneous rock intruded between layers of sedimentary rock. Lopoliths are usually connected to a dike and are typically tens of kilometers thick and hundreds of kilometers wide.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.