1. a person or device that applies fumigants (chemical gases or vapors) to kill pests, insects, or microorganisms in a space or on objects

Examples

• The fumigator arrived early in the morning to treat the warehouse for termites.
• A professional fumigator must be licensed and trained to handle toxic chemicals safely.
• The fumigator sealed all the windows before releasing the pesticide gas.
• We hired a fumigator to eliminate the cockroach infestation in our apartment building.
• The fumigator used specialized equipment to distribute the fumigant evenly throughout the grain storage facility.