Definition of "volcanicity" [vol•can•ic•i•ty]

• The quality or state of being volcanic. (noun)
• The level of power of a volcano. (noun)

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• "Preliminary note on the state of volcanicity of Kilimanjaro."
• "Finally we had a few words on the origin of volcanicity and afterwards some discussion on an old point -- the relation to the sea."
• "The lecturer finally reviewed the volcanicity of our own neighbourhood."