brown rat

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brown rat

A brown rat scurries along a city alley at dusk.

Definition

Noun 1. A common species of rodent (Rattus norvegicus): A widespread, medium-sized rodent with brown or grey fur, a long scaly tail, and a blunt nose. It is a major pest known for damaging property, contaminating food, and spreading diseases. 2. A serious worldwide pest: Refers to the species' significant negative impact on human habitats, agriculture, and health across the globe.

Usage Examples
  • The brown rat is often found in sewers, basements, and urban areas.
  • Efforts to control the brown rat population are important for public health.
  • The study compared the behavior of the brown rat with that of the black rat.
Advanced Usage
  • As a subject of scientific research: Due to its adaptability and physiology, the brown rat is a common model organism in laboratory studies.
    • The brown rat has contributed extensively to medical and psychological research.
Variants and Related Words
  • Norway rat: Another common name for the brown rat.
  • Sewer rat: A colloquial term referencing one of its common habitats.
  • Wharf rat: A colloquial term used in port areas.
  • Rattus norvegicus: The scientific binomial name.
Synonyms
  • Common rat
  • Street rat (colloquial)
  • Hanover rat (historical)
Related Phrases
  • Rat infestation: A situation where a large number of rats, often including brown rats, occupy a building or area.
    • The old warehouse suffered from a severe rat infestation.
brown rat

A brown rat scurries along a city alley at dusk.

Noun
  1. common domestic rat; serious pest worldwide

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