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batholith
(bat̸h′ō lit̸h′)
noun
a massive, dome-shaped formation of intrusive igneous rock, usually granite, that is thought to have originated far beneath the earth's surface, forms the base of mountain ranges, and is often found exposed as the result of long periods of erosion
often called batholite
Origin: batho- + -lith
See batholith in American Heritage Dictionary 4
noun
A large mass of igneous rock that has melted and intruded surrounding strata at great depths.
Related Forms:
- bathˌo·lithˈic adjective
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