[ bath-uh-lith ]
/ ˈbæθ ə lɪθ /

noun Geology.

a large body of intrusive igneous rock believed to have crystallized at a considerable depth below the earth's surface; pluton.

Origin of batholith

First recorded in 1900–05; batho- + -lith


bath·o·lith·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for batholith

  • Upon the southwestern border of the batholith the number of aplitic dikes greatly increases.

British Dictionary definitions for batholith


batholite (ˈbæθəˌlaɪt)

/ (ˈbæθəlɪθ) /


a very large irregular-shaped mass of igneous rock, esp granite, formed from an intrusion of magma at great depth, esp one exposed after erosion of less resistant overlying rocks

Derived forms of batholith

batholithic or batholitic, adjective
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

Science definitions for batholith

[ băthə-lĭth′ ]

A large mass of igneous rock that has intruded and melted surrounding strata at great depths. Batholiths usually have a surface area of over 100 km2 (38 mi2).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.