Word.ws English Dictionary

sewer rat

sewer rat noun: the brown rat (Rattus norvegicus).

Noun

sewer rat (plural sewer rats)

  1. The brown rat (Rattus norvegicus).
    • The black rat [...] became extinct in Britain following the Roman withdrawal, only to reappear in Norman times. Thereafter the black rat prospered - until the arrival of the larger brown rat (also known as the sewer rat or Norway rat), which reached Britain at about the time of the Hanoverian...2018, Tim Flannery, Europe: A Natural History, page 272
  2. (derogatory) A contemptible person.
    Synonyms:
    scumbag
  3. Used other than figuratively or idiomatically: Any rat that lives in sewers.

Synonyms of sewer rat

Forms of sewer rat

pluralsewer rats

Questions about sewer rat

What does sewer rat mean?
Sewer rat means the brown rat (Rattus norvegicus).
What part of speech is sewer rat?
Sewer rat is a noun.
What is the plural of sewer rat?
The plural of sewer rat is sewer rats.

Words near sewer rat in the dictionary

  1. sewens
  2. sewer
  3. sewer flies
  4. sewer fly
  5. sewer gas
  6. sewer rat
  7. sewer rats
  8. sewer service
  9. sewer slide
  10. sewer slides
  11. sewer socialism

Source and license

Adapted from Wiktionary: sewer rat (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-sewer rat.wav.

Cite this entry: “sewer rat.” Word.ws, https://word.ws/sewer_rat. Based on Wiktionary, CC BY-SA 4.0.