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Webster 1913 Edition

Vulcanism

Vul′can-ism

,

Noun.

Volcanism.

Definition 2024

Vulcanism

Vulcanism

See also: vulcanism

English

Proper noun

Vulcanism

(historical) The belief, held mostly in the 18th century, that rocks were formed in fire. This theory was a rival theory to Neptunism.

Synonyms

Plutonism

Related terms

Vulcanist

vulcanism

vulcanism

See also: Vulcanism

English

Noun

vulcanism ‎(plural vulcanisms)

Alternative spelling of volcanism