| 单词 | roof rat |
| 释义 | > as lemmasroof rat roof rat n. now chiefly U.S. the black or ship rat, Rattus rattus.Quot. 1819 illustrates an equivalent compound with a form of rottan n.In quot. 1945 spec. the brownish subspecies R. r. alexandrinus. ΘΚΠ the world > animals > mammals > group Unguiculata or clawed mammal > order Rodentia or rodent > superfamily Myomorpha (mouse, rat, vole, or hamster) > [noun] > family Muridae > genus Rattus (rat) > rattus rattus (black rat) roof rat1837 ship-rat1860 1819 Edinb. Mag. & Literary Misc. July 506 Black rotten, Roof Rotten.] 1837 Brit. Cycl. Nat. Hist. III. 533/2 They are called ground rats or flax rats, in distinction from the black ones, which are roof rats. 1882 D. C. Beard Amer. Boy's Handy Bk. xxiii. 210 The roof rat in the Southern States came originally from Egypt. 1945 T. D. Carter et al. Mammals Pacific World 114 The black rat is recognized by its color, but the roof rat is colored much like the Norway rat. 2005 Amer. Midland Naturalist 153 138 The roof rat (Rattus rattus), an introduced species that is practically ubiquitous around farm buildings of the area. < as lemmas |
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