From The Collaborative International Dictionary of English v.0.48: Ratter \Rat"ter\ (r[a^]t"t[~e]r), n. 1. One who, or that which, rats, as one who deserts his party. [1913 Webster] 2. Anything which catches rats; esp., a dog trained to catch rats; a rat terrier. See Terrier. [1913 Webster]
Ratter \Rat"ter\ (r[a^]t"t[~e]r), n. 1. One who, or that which, rats, as one who deserts his party. [1913 Webster]
2. Anything which catches rats; esp., a dog trained to catch rats; a rat terrier. See Terrier. [1913 Webster]