a guinea pig

if someone is used as a guinea pig, new ideas or products are tested on them They're looking for volunteers to act as guinea pigs for a new AIDS vaccine.

Common Names:

Name	Pronounced	Usage
Keti	-	Georgian
Cairbre	KAHR-bra	Irish, Scottish
Sieghild	-	German
Makenna	mə-KEN-ə	English (Modern)
Valentine	['væləntain]
Nikhil	-	Indian, Hindi, Marathi, Gujarati, Odia, Telugu, Malayalam, Kannada, Tamil