Definition

Noun: 1. A common species of large brown rat (Rattus norvegicus): A widespread rodent, also known as the brown rat, sewer rat, or wharf rat. It is a major pest globally, known for damaging property, contaminating food, and spreading disease.

Usage Examples

• The Norway rat is highly adaptable and lives in close association with humans.
• Effective sanitation is crucial for controlling populations of the Norway rat.
• Researchers study the behavior of the Norway rat in urban environments.

Advanced Usage

• The term is often used in scientific, pest control, and public health contexts to specify this particular species, distinguishing it from other rodents like the black rat () or house mouse ().

Variants and Related Words

• Brown rat (n): A common synonym for the Norway rat, referring to its typical fur color.
• Sewer rat (n): A variant name highlighting one of its common urban habitats.
• Wharf rat (n): A variant name indicating its frequent presence around docks and ports.
• Rattus norvegicus (n): The formal biological (Latin) name for the species.

Synonyms

• Brown rat
• Common rat
• Street rat

Related Phrases

• Rat infestation: A situation where a large number of rats, often Norway rats, are present in a location.
  • The building was condemned due to a severe rat infestation.

Noun

1. common domestic rat; serious pest worldwide