noun
a small domesticated rodent often kept as a pet, typically having a white, tan, and black coat
-
The researchers used a guinea pig for their experiment on the effects of the new drug.
-
I volunteered to be the guinea pig for testing out the new video game before it's released.
-
I feel like I'm always the guinea pig in this group, trying out new restaurants and activities first.
-
She felt like a guinea pig in the office, always being asked to test out new procedures and systems.