Guinea pig
Meaning
A person or thing used as a subject for an experiment, test, or trial, often without their full understanding or consent of the potential risks.
Origin
The phrase's journey from a literal animal to a metaphorical human subject is rooted in the history of science. Guinea pigs, small and docile rodents originally from South America, became favored subjects for scientific research in Europe due to their easy handling, rapid reproduction, and physiological similarities to humans. By the early 20th century, especially with the rise of medical and psychological experimentation, the term “guinea pig” crossed into the vernacular, symbolizing any individual or group undergoing a test or experiment, often in an involuntary or exploratory capacity, much like the furry creatures in a laboratory.
Examples
- The new software was rolled out to a small group of employees as guinea pigs before its official public release.
- Scientists are seeking volunteers to be guinea pigs for the experimental vaccine trial.