Bible Dictionaries
Plutonism

Webster's Dictionary

(n.) The theory, early advanced in geology, that the successive rocks of the earth's crust were formed by igneous fusion; - opposed to the Neptunian theory.

Bibliography Information
Webster, Noah. Entry for 'Plutonism'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/plutonism.html. 1828.