Rotate



GRE TOEFL 考研

解释

GRE 红宝书

• v. 旋转, 转动 ; 轮流, 交替
• ［英］ v. 旋转, 转动 ( turn round a fixed point or axis)

Webster Collegiate

I. adjective

• Etymology: Latin rota
• Date: 1785
• having the parts flat and spreading or radiating like the spokes of a wheel <rotate blue flowers>

II. verb (rotated; rotating)

• Etymology: Latin rotatus, past participle of rotare, from rota wheel — more at roll
• Date: 1785
• intransitive verb
  • 1.
    • a. to perform an act, function, or operation in turn
    • b. to pass or alternate in a series
  • 2. to turn about an axis or a center ; revolve; especially to move in such a way that all particles follow circles with a common angular velocity about a common axis
• transitive verb
  • 1.
    • a. to cause to turn or move about an axis or a center
    • b. to cause (a plane region or line) to sweep out a volume or surface by moving around an axis so that each of its points remains at a constant distance from the axis <generate a torus by rotating a circle about an external line>
  • 2. to cause to grow in rotation <rotate crops>
  • 3. to cause to pass or act in a series ; alternate
  • 4. to exchange (individuals or units) with others
• ? rotatable adjective

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