Violent physical disturbance; esp. said of an earthquake or similar phenomenon.
| 单词 | θ5059 | 
| 释义 | the world > the earth > structure of the earth > formation of features > convulsion > 			[noun]		 (69)		 convulsiona1701 Violent physical disturbance; esp. said of an earthquake or similar phenomenon. catastrophe1832 esp. in Geology. A sudden and violent change in the physical order of things, such as a sudden upheaval, depression, or convulsion affecting the… cataclysm1833 A great and general flood of water, a deluge; esp. the Noachian deluge, the Flood. Subcategories:— 			earthquake			(42)		 — 			fissure eruption			(1)		 — 			volcanic activity			(21)		 — 			formation by impact			(1)		 — 			gaping of the earth			(1)		  | 
	
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