Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • proper noun A taxonomic genus within the sybfamily Murinae — the rats, including about 50 species.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Medieval Latin rattus ("a rat")

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Examples

  • The pathogen was unleashed when Eurasian black rats jumped ship onto the island at the turn of the 20th century, causing extermination of two endemic species, namely Rattus macleari and R. nativitatis.

    dailyindia.com News Feed 2008

  • Sheena appeared taken back at first when the rodent, dubbed "Rattus," for its genus,

    About.com Cats 2009

  • The real culprit, according to "The Statues That Walked," was the Polynesian rat Rattus exulans , which stowed away on the boats of the first Polynesian settlers.

    Don't Blame the Natives Charles C. Mann 2011

  • Increased IL-4 production and attenuated proliferative and pro-inflammatory responses of splenocytes from wild-caught rats Rattus norvegicus.

    The Autoimmune Epidemic Donna Jackson Nakazawa 2008

  • Increased IL-4 production and attenuated proliferative and pro-inflammatory responses of splenocytes from wild-caught rats Rattus norvegicus.

    The Autoimmune Epidemic Donna Jackson Nakazawa 2008

  • A few miles from campus was an old-fashioned country dump, out in the middle of nowhere, that was the preferred habitat of Rattus norvegicus, the common brown rat.

    More Nostalgia, and Rat Shooting 2008

  • Today, the rat has been synonymized with the Polynesian rat (Rattus exulans), so is no longer considered a distinct species.

    Archive 2008-06-01 2008

  • If real, the phenomenon may have diminished when the brown rat (Rattus norvegicus) displaced the black rat (R. Rattus) in the 18th century.

    Boing Boing 2008

  • Ship rats Rattus rattus seem to be especially prone to this, forming non-interbreeding populations with differing chromosome counts, more or less overnight.

    How to make a snake - The Panda's Thumb 2010

  • They die within a day; their lifespan is accelerated because time works on them differently, just as time works differently on a Galapagos tortoise and a Rattus rattus.

    BLANKENSHIP & DAWES IN: CHRONO-CONUNDRUM! • by Jens Rushing 2008

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