1. a room or building equipped for scientific experiments, research, or teaching
2. a place providing opportunity for experimentation, observation, or practice in a field of study
Usage: figurative

Examples

• The chemistry laboratory was equipped with modern instruments.
• Students conducted their biology experiments in the lab.
• The research laboratory made an important discovery about cancer cells.
• She works as a technician in a medical laboratory.
• The computer lab is open until midnight for student use.
• The city became a laboratory for urban planning innovations.
• Our kitchen serves as a laboratory for testing new recipes.