Volcanic nature; volcanicity.
| 单词 | θ5075 | 
| 释义 | the world > the earth > structure of the earth > formation of features > convulsion > 			[noun]		 > volcanic activity (21)		 volcanity1793 Volcanic nature; volcanicity. volcanism1830 Volcanic action or phenomena; the state, condition, or character of being volcanic; = vulcanism, n. 2. Cf. volcanicity, n. volcanicity1832 Volcanic action or activity; volcanic phenomena collectively. vulcanicity1848 = volcanicity, n. vulcanism1863 = volcanism, n. 2. Subcategories:— 			eruption			(12)		 — 			swelling			(1)		 — 			scorification			(1)		 — 			emission of minerals			(1)		 — 			frequency of occurrence			(1)		  | 
	
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