a dome-shaped, irregular formation of intrusive igneous rock found between layers of sedimentary rock
Origin of laccolithfrom Classical Greek lakkos, a cistern + -lith
A mass of igneous rock intruded between layers of sedimentary rock, resulting in uplift.
Origin of laccolithGreek lakkos pond, cistern -lith
Ancient Greek λάκκος (lakkos, “cistern”) + λίθος (lithos, “stone”)