| − | Very large, irregularly-shaped mass of [[igneous rock]] formed from the [[intrusion]] of [[magma]] at great depth.
| + | A '''batholith''' is a very large, irregularly-shaped mass of [[igneous rock]] formed from the [[intrusion]] of [[magma]] at great depth.<ref>Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995)</ref> |