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Definition of "rotor" []

  • A rotating part of an electrical or mechanical device. (noun)
  • An assembly of rotating horizontal airfoils, as that of a helicopter. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "rotor" in a sentence
  • "When the rotor is straight, the brakes will work better and your quad may even be slightly faster, as rolling resistance will be eliminated."
  • "I crashed it dozens of times, the last of which caused the main rotor to snap beyond repair."
  • "Although an efficiently simple design, the tiny size of the motor (e.g., each rotor is 20 micrometers in diameter) required special fabrication techniques."