Etna Volcanic mountain on the e coast of Sicily, Italy. The first known eruption was in 475 bc, others occurring in 1169, 1669 and 1971. It is the highest active volcano in Europe and the highest mountain in Italy, s of the Alps. The fertile lower slopes are used for agriculture. Height: c.3340m (10,958ft).

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etna vessel for heating liquid. XIX. f. the name of the volcano Etna in Sicily.