noun
laboratory bench; lab table
A physical work surface in a lab where experiments are conducted.
実験台の上にビーカーが並んでいる。
Beakers are lined up on the laboratory bench.
noun
experimental subject; guinea pig
Figurative use for a person or thing used as a test subject, often with a nuance of being used without full consent.
It's scary to be used as a guinea pig for a new drug.
彼は上司の実験台にされた。
He was made a guinea pig by his boss.
モルモット literally means 'guinea pig' (the animal) and is also used figuratively for a test subject, similar to the second sense of 実験台.
Compound of 実験 (experiment) and 台 (stand, table). The figurative sense developed from the image of a lab bench where tests are performed.