guinea pig

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Ca·vi·a por·cel·'lus

a rodent with a very short tail that is not visible externally; native to South America, where it is raised for food; used widely as a laboratory animal in medical research.
Synonym(s): guinea pig

guinea pig

n.
1. Any of various small, stocky, short-eared rodents of the genus Cavia of South America, having no visible tail. The domesticated species C. porcellus is widely kept as a pet and is used in biomedical research.
2. Informal A person who is used as a subject for experimentation or research.
Research A rodent occasionally used in research
Vox populi A person used in any empirical situation, analogous to guinea pigs, which in fact have very limited usefulness as experimental animals; although use of the analogy has continued, the use of guinea pigs as test animals has not.

guinea pig

the domestic guinea pig, popular as a pet and as an experimental laboratory animal. Distinctive because of its requirement for a source of dietary vitamin C, long gestation period of 63 days and very mature young at birth. Comes in a great variety of broken and whole colors and color combinations, the most common being Himalayan (white with black points), tortoiseshell (patches of dark and light brown), tortoise and white, Dutch (white with brown or tan pattern), brindle, silver agouti (silver and gray underside), golden agouti (dark hair tipped with yellow), and albino (pure white with pink eyes). There are three varieties: English shorthaired—short, fine, glossy hair; Peruvian longhaired—long, silky hair obscures just where the vital structures of this guinea pig are; Abyssinian roughhaired—short, wiry coat composed of swirls or rosettes. Called also Cavia porcellus.
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Guinea pigs. By permission from Sack W,Wensing CJG, Dyce KM, Textbook of Veterinary Anatomy,Saunders, 2002
References in periodicals archive ?
The cases of hundreds of people who say they were used as guineapigs in germ warfare experiments at the Chemical and Biological Defence Establishment have been investigated by police.
Deprived of clueless adult guineapigs in sufficient quantities, numerous mental health "professionals" find themselves more and more resembling Moloch.
Vaccinia recombinant expressing Lassa-virus internal nucleocapsid protein protects guineapigs against Lassa fever.
Budgies, guineapigs and hamsters need not apply - the scheme is only available to cats and dogs.
We got our guineapigs to try out four different methods of improving posture - Pilates, yoga, the Alexander Technique and a new therapy called Feldenkrais Method.
50] values of glycyrrhizinic acid and its various salts in mice, guineapigs and dogs are reported to be in the range of 308-12,700 mg/kg bw.