noun
common household pest originally from Asia that has spread worldwide
• Syn: ↑black rat, ↑Rattus rattus
• Hypernyms: ↑rat
• Member Holonyms: ↑Rattus, ↑genus Rattus
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noun : a grayish brown rat that is a variety (Rattus rattus alexandrinus) of the black rat, is common in warm regions, and often nests in trees or the upper parts of buildings
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a black rat, Rattus rattus alexandrinus, often found on the upper floors of buildings in warm areas.
[1810-20]
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roof rat,
a long-tailed black rat found about buildings in Europe, southern North America, and South America; black rat.
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n. another term for black rat
Useful english dictionary. 2012.