In scientific use, speed together with the direction of travel, as a vector quantity.
| 单词 | θ75916 | 
| 释义 | the world > matter > physics > mechanics > dynamics > 			[noun]		 > speed or direction as vector quality (15)		 velocity1847 In scientific use, speed together with the direction of travel, as a vector quantity. Subcategories:— 			opposite of			(1)		 — 			velocity potential and stream function			(1)		 — 			unit of momentum			(1)		 — 			device to measure or record velocity			(5)		 — 			rate of increase of velocity			(6)		  | 
	
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