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rotor

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noun ro·tor \ˈrō-tər\

Simple Definition of rotor

  • : a part of a machine that turns around a central point

Source: Merriam-Webster's Learner's Dictionary

Full Definition of rotor

  1. 1 a :  a part that revolves in a stationary part <a brake rotor> b :  the rotating member of an electrical machine

  2. 2 :  an assembly of rotating blades that supplies lift or stability for a rotorcraft

Origin and Etymology of rotor

contraction of rotator


First Known Use: 1903


ROTOR Defined for Kids

rotor

play
noun ro·tor \ˈrō-tər\

Definition of rotor for Students

  1. 1 :  the part of an electrical machine that turns

  2. 2 :  a system of spinning horizontal blades that support a helicopter in the air




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