What is a mass of igneous rock intruded between sedimentary beds and resulting in a mammiform bulging of the overlying strata. -- Lac`co*lit"ic, a called?

laccolith — A mass of igneous rock intruded between sedimentary beds and resulting in a mammiform bulging of the overlying strata. -- Lac`co*lit"ic, a. (Webster's 1913.)

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