单词 | velocity |
释义 | velocity /veuh los"i tee/, n. , pl. velocities. 1. rapidity of motion or operation; swiftness; speed: a high wind velocity. 2. Mech. the time rate of change of position of a body in a specified direction. 3. the rate of speed with which something happens; rapidity of action or reaction. [1540-50; < L velocitas speed. See VELOCIPEDE, -TY2] Syn. 1. See speed. |
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