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guinea pig

Someone or something used as the subject of an experiment. Jane used her husband as a guinea pig to try her new baked chicken recipe. Craig earned a little extra money by signing up to be a guinea pig in some local clinical studies.
See also: guinea, pig

serve as a/(one's) guinea pig

To act or function as the object of a test, experiment, or assessment. We'll have a limited release the product and let this region serve as a guinea pig. If it is received well, we can expand production and distribution to the rest of the county. A: "I have a wild new dish I'd like you to try!" B: "No way! I have no interest in serving as your guinea pig again."
See also: guinea, pig, serve

Serve as a guinea pig

Fig. [for someone] to be experimented on; to allow some sort of test to be performed on one. (Alludes to the use of guinea pigs for biological experiments.) Try it on someone else! I don't want to serve as a guinea pig! Jane agreed to serve as a guinea pig. She'll be the one to try out the new flavor of ice cream.
See also: guinea, pig, serve

a guinea pig

COMMON If someone is used as a guinea pig, new ideas, methods, or medical treatments are tested on them. The new technology should allow us to study genetic disease without having to use humans as guinea pigs. This is the first time I've cooked this dish so you are my guinea pigs.
See also: guinea, pig

a ˈguinea pig

a person used in medical or other experiments: Students in fifty schools are to act as guinea pigs for these new teaching methods.
A guinea pig is a small animal with short ears and no tail, often kept as a pet or used for laboratory research.
See also: guinea, pig
References in periodicals archive ?
7, Portland Guinea Pig Rescue tweeted that Blueberry and After Pie, the 'sqirreliest pair' had found new homes.
Foreign Minister of Guinea invited the Government of India and Indian business to participate in the Donors/Investors Conference to be held at Paris in third week of November 2017.
He expressed Guinea's desire have strong bilateral relations with Pakistan in every field and said Guinea was open for Pakistani investors.
Equatorial Guinea clearly favours respect and non-intervention in the internal matters of other sovereign States.
Equatorial Guinea maintains an embassy in the United States at 2020 16th Street NW, Washington, DC 20009 (tel.
Papua New Guinea is the South Pacific island's largest city.
Ferguson says she and her family never have had Lyme disease, but some guinea owners, including Phyllis Bender of Westport, Conn.
At the surgery, we commonly have to deal with guinea pigs struggling to eat because of ulcers caused by sharp teeth.
It has been noted that relations between Nigeria and Equatorial Guinea also improved in the period under study as compared to previous decades as a result of concerted efforts by both governments to improve relations.
OCAD attempts to aggressively pursue the largely foreign drug traffickers operating through Guinea.
Like many people from his village, Emjor had been infected by a parasite known as the Guinea worm.
In reference to the Q&A item on the value of the guinea (May 2006), and subsequent correspondence, when the coin was first issued by the Royal Mint in 1663, it was indeed worth 20 shillings.
By flipping on a gene that's normally active only during embryonic development, researchers have restored hearing to a group of profoundly deaf guinea pigs.
In 1999 in Papua New Guinea, wild and domestic pigs infected with a new species, T.