Laboratory
Part of speech: noun
Definition: a room, building or institution equipped for scientific research, experimentation or analysis a place where chemicals, drugs or microbes are prepared or manufactured
Example sentence: We're all of us guinea pigs in the laboratory of God. Humanity is just a work in progress.
Lab
Part of speech: adjective
Definition: laboratory
Part of speech: noun
Definition: A laboratoryA labrador (breed of dog).
Example sentence: You can't regulate every lab in the world.