What's the difference between plutonism and plutonist?
Plutonism
Definition:
(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.
Example Sentences:
(1) The causative agent of American foulbrood is Bacillus larvae, the causes of the European foulbrood diseases are Streptococcus pluton and Bacillus alvei and the causes of the septicemia are Pseudomonas apiseptica and Escherichia coli in honeybees (Apis mellifera).
(2) Four small towns in the pluton area were investigated in the valley of the river Cervo.
Plutonist
Definition:
(n.) One who adopts the geological theory of igneous fusion; a Plutonian. See Plutonism.