antitorque rotor

an·​ti·​torque rotor

Definition of antitorque rotor

: a small rotor mounted on the tail of a helicopter that balances the torque reaction of the main lifting rotor and thus permits the craft to maintain a desired heading

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for antitorque rotor

anti- entry 1 + torque entry 2

Keep scrolling for more

Learn More about antitorque rotor

Statistics for antitorque rotor

Cite this Entry

“Antitorque rotor.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2020.

Comments on antitorque rotor

What made you want to look up antitorque rotor? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!