in·​frac·​tor | \ -ktə(r) \
plural -s

Definition of infractor

: one that infracts or infringes : violator, breaker

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 infractor

probably from Middle French infracteur, from Late Latin infractor, from Latin infractus (past participle of infringere) + -or

Keep scrolling for more

Learn More about infractor

Statistics for infractor

Cite this Entry

“Infractor.” The Dictionary, Merriam-Webster Inc., Accessed 26 January 2020.

More from Merriam-Webster on infractor

Rhyming Dictionary: Words that rhyme with infractor

Spanish Central: Translation of infractor

Comments on infractor

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


to express in a more acceptable way

Get Word of the Day daily email!

Test Your Vocabulary

Intact Latin Quiz

  • roman tablet
  • What did focus mean in Latin?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

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!