Dictionary

rotor

noun ro·tor \ˈrō-tər\

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

Full Definition of ROTOR

1
a :  a part that revolves in a stationary part <a brake rotor>
b :  the rotating member of an electrical machine
2
:  an assembly of rotating blades that supplies lift or stability for a rotorcraft
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Origin of ROTOR

contraction of rotator
First Known Use: 1903
ROTOR Defined for Kids

rotor

noun ro·tor \ˈrō-tər\

Definition of ROTOR for Kids

1
:  the part of an electrical machine that turns
2
:  a system of spinning horizontal blades that support a helicopter in the air

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