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Definition of Rattus
1. Noun. Common house rats; upper incisors have a beveled edge.
Exact synonyms: Genus Rattus
Generic synonyms: Mammal Genus
Group relationships: Family Muridae, Muridae
Member holonyms: Brown Rat, Norway Rat, Rattus Norvegicus, Black Rat, Rattus Rattus, Roof Rat
Generic synonyms: Mammal Genus
Group relationships: Family Muridae, Muridae
Member holonyms: Brown Rat, Norway Rat, Rattus Norvegicus, Black Rat, Rattus Rattus, Roof Rat
Medical Definition of Rattus
1. The rats, a genus of rodents, family Muridae. Rattus rattus, the black r., is the species most commonly responsible for transmitting plague to man by means of its flea, Xenopsylla cheopis; it is smaller and darker in colour than the Norwegian, sewer, or brown rat (Rattus norvegicus) and has longer ears and tail. See: rat. (05 Mar 2000)
Lexicographical Neighbors of Rattus
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