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Noun: ratter  ra-tu(r)
  1. A disloyal person who betrays or deserts his cause or religion or political party or friend etc.
    - deserter, apostate, renegade, turncoat, recreant [archaic]
  2. Any of several breeds of terrier developed to catch rats
    - rat terrier

Derived forms: ratters

Type of: quitter, terrier

Encyclopedia: Ratter