English / idiom
guinea pig
MEANING IN ENGLISH
A person or thing used as a subject in an experiment or test to evaluate safety or results.
In context
01
Kiran refused to be a guinea pig for an untested fat-burning supplement promoted on social media.
02
Before rolling out the new mindfulness regimen nationwide, sixty volunteers served as guinea pigs in the pilot study.
Synonyms
test subject,human trial participant,research specimen
Antonyms
researcher,experimenter
Collocations
act as a guinea pig,serve as a guinea pig,human guinea pig