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laccolith
[ lak-uh-lith ]
/ ˈlæk ə lɪθ /
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noun Geology.
a mass of igneous rock formed from magma that did not find its way to the surface but spread laterally into a lenticular body, forcing overlying strata to bulge upward.
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Also lac·co·lite [lak-uh-lahyt]. /ˈlæk əˌlaɪt/.
Origin of laccolith
OTHER WORDS FROM laccolith
lac·co·lith·ic, lac·co·lit·ic [lak-uh-lit-ik], /ˌlæk əˈlɪt ɪk/, adjectiveWords nearby laccolith
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for laccolith
laccolith
laccolite (ˈlækəˌlaɪt)
/ (ˈlækəlɪθ) /
noun
a dome-shaped body of igneous rock between two layers of older sedimentary rock: formed by the intrusion of magma, forcing the overlying strata into the shape of a domeSee lopolith
Derived forms of laccolith
laccolithic or laccolitic (ˌlækəˈlɪtɪk), adjectiveWord Origin for laccolith
C19: from Greek lakkos cistern + -lith
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for laccolith
laccolith
[ lăk′ə-lÄth′ ]
A body of igneous rock intruded between layers of sedimentary rock, resulting in uplift. Laccoliths are usually plano-convex in cross-section, having a flat bottom and a convex top, and are roughly circular in plan. They are usually connected to a dike and are typically up to 8 km (5 mi) in diameter and tens to hundreds of meters thick. See illustration at batholith.
The American Heritage® Science Dictionary
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