Noun: ratter ra-tu(r)
- Any of several breeds of terrier developed to catch rats
"The ratter quickly dispatched the rodents in the barn";
- rat terrier
- A disloyal person who betrays or deserts his cause or religion or political party or friend etc.
"The politician was labelled a ratter after switching parties";
- deserter, apostate, renegade, turncoat, recreant [archaic]
Derived forms: ratters
Encyclopedia: Ratter