— laccolithic, laccolitic /lak'euh lit"ik/ , adj.
/lak"euh lith/ , n. Geol.
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.
Also, laccolite /lak"euh luyt'/ .
[ 1875-80; lákko ( s ) pond + -LITH ]