˜yÐÄvlog

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guinea pig

noun

  1. a short-eared, tailless rodent of the genus Cavia, usually white, black, and tawny, commonly regarded as the domesticated form of one of the South American wild species of cavy: often used in scientific experiments or kept as a pet.
  2. Informal. the subject of any sort of experiment:

    I've volunteered as a guinea pig in several clinical trials.

guinea pig

noun

  1. a domesticated cavy, probably descended from Cavia porcellus, commonly kept as a pet and used in scientific experiments
  2. a person or thing used for experimentation
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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˜yÐÄvlog History and Origins

Origin of guinea pig1

First recorded in 1655–65
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˜yÐÄvlog History and Origins

Origin of guinea pig1

C17: origin uncertain: perhaps from old use of the name Guinea to mean any remote unknown land

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