Definition of black rat in English:

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black rat

noun

A rat with dark fur, large ears, and a long tail. It is found throughout the world, being particularly common in the tropics, and is the chief host of the plague-transmitting flea. Also called ship rat, house rat, or roof rat.
  • Rattus rattus, family Muridae
Example sentences
  • The plague likely spread to Europe on the backs of shipboard black rats that carried plague-infested fleas.
  • The reptile house will become the mouse house, home to all kinds of rodents including black rats.
  • The small animals we call rats come in two types, the black rat and the Norway rat, and they have lived with man throughout history.

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