a. [See VULCANOLOGY and -ICAL.] Of, pertaining to, or connected with vulcanology.

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1888.  Nature, 30 Aug., 410/1. Seismology … is usually treated … as a branch of vulcanological science. Ibid. (1899), 11 May, 27/2. A … very readable account of the present state of vulcanological science.

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