VOLCANIST
Source: 566, 567
volcanist. Volcanist, n. one versed in the study of volcanoes, one who believe in the effect of fire in forming mountains, &c.
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Vol″can‐ist, n. [[Cf. F. volcaniste, vulcaniste.]] 1. 1. One versed in the history and phenomena of volcanoes.
2. 2. One who believes in the igneous, as opposed to the aqueous, origin of the rocks of the earth's crust; a vulcanist. Cf. Neptunist.