noun a person or thing that infiltrates, especially an unauthorized individual or substance entering a place surreptitiously
Infiltrants are individuals or groups that penetrate enemy lines or territory for espionage or sabotage purposes.
Infiltrants are pollutants that seep into soil or groundwater through infiltration processes.
Infiltrants are materials used to fill gaps or cracks in structures to prevent leaks or damage.
Infiltrants can refer to substances or cells that invade tissues or organs in the body.
Infiltrants are substances used in infiltration techniques to impregnate porous materials with a liquid or a solution.
In a spy novel, the protagonist is an infiltrant who goes undercover to gather information.
A psychologist may use the term infiltrant to refer to a patient who is pretending to be someone else in therapy sessions.
Law enforcement officers may use the term infiltrant to describe an undercover agent who infiltrates criminal organizations to gather evidence.
A military analyst may use the term infiltrant to refer to a soldier who is inserted into enemy territory to gather intelligence.