I'm curious to know whether the Romans had a word for "volcano", and, more specifically, whether they thought of Mount Vesuvius as a volcano.1 After the eruption of AD 79, I'm sure they had some choice words for what happened... what words did they use to describe the eruption and particularly the volcano? Feel free to offer evidence on any eruptions predating the one of AD 79, as after skimming the Wikipedia page on Mount Vesuvius, there seem to have been eruptions before then, or at least, descriptions by Greek and Roman writers of its fiery nature.
1 I found one option on William Whitaker's words, i.e. vulcanus, but I'm not sure if this word is attested from descriptions of Vesuvius, or even if it was widely used.