Word.ws English Dictionary

guinea pigs

guinea pigs is the plural of guinea pig.

Meaning of guinea pig

Noun

guinea pig (plural guinea pigs)

  1. Any tailless rodent of the genus Cavia, which have short ears and superficially resemble large hamsters.
    1. (especially) A domestic guinea pig, Cavia porcellus, often kept as a pet.
  2. (figuratively) A living experimental subject.
    • He became a human guinea pig and was paid by the company.
    Synonyms:
    lab rat
  3. (dated, slang) A professional company director, without time or real qualifications for the duties.
  4. (obsolete) A midshipman in the East India service; (by extension) a low-skilled or non-proficient seaman.
    • A good seaman he is... none of your guinea-pigs.1748, Tobias Smollett, The Adventures of Roderick Random, page 183

Questions about guinea pigs

What is guinea pigs the plural of?
Guinea pigs is the plural of guinea pig.

Words near guinea pigs in the dictionary

  1. guinea pig directors
  2. guinea pig night
  3. guinea pig nights
  4. guinea piglet
  5. guinea piglets
  6. guinea pigs
  7. Guinea plum
  8. Guinea plums
  9. Guinea sorrel
  10. guinea squash
  11. guinea stand

Source and license

Adapted from Wiktionary: guinea pigs (page history and authors); guinea pig (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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Cite this entry: “guinea pigs.” Word.ws, https://word.ws/guinea_pigs. Based on Wiktionary, CC BY-SA 4.0.