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

Alternative spelling of Vulcanism (“historical scientific view”) / Alternative spelling of volcanism (“volcanic activity”)

plural of vulcanism

(Roman mythology) The god of volcanoes and fire, especially the forge, also the patron of all craftsmen, principally blacksmiths. The Roman counterpart of Hephaestus.

(fiction) An inhabited planet, the homeworld of the Vulcan species. / A language constructed for the Star Trek franchise, spoken by the fictional Vulcan species.

(fiction) An inhabitant of the planet Vulcan; a species that values a personal emphasis on logic and strict personal emotional control.

(aircraft) The Avro Vulcan, a type of jet-powered British bomber aircraft built by Avro during the Cold War.

(transitive) To treat rubber with heat and (usually) sulphur to harden it and make it more durable. / (intransitive) To undergo such treatment.

simple past tense and past participle of vulcanize

Third-person singular simple present indicative form of vulcanize