vul·ca·nol·o·gy /ˌvʌlkəˈnɑləʤi/
火山學
Vul·can·ol·o·gy n. The science which treats of phenomena due to plutonic action, as in volcanoes, hot springs, etc. [R.]
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vulcanology
n : the branch of geology that studies volcanoes [syn: volcanology]