ALL meanings of brown rat
brown rat
B b - noun brown rat a common brownish rat, Rattus norvegicus: a serious pest in all parts of the world 3
- noun brown rat a common, omnivorous large rat (Rattus norvegicus) that swims and dives well, usually lives in underground burrows, and spreads various diseases: the mutant form, a white rat, is used for medical experiments 3
- noun brown rat Norway rat. 1
- noun brown rat A species of rat, Rattus norvegicus, common worldwide. 0