Brown-rat meaning
The common domestic rat (Rattus norvegicus), which is found worldwide and is a destructive pest of crops and stored food and a carrier of disease.
noun
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.
noun
The common domestic rat (Rattus norvegicus), which is found worldwide and is a destructive pest of crops and stored food and a carrier of disease.
noun
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