- to filter into or through; permeate.
- to cause to pass in by filtering.
- to move into (an organization, country, territory, or the like) surreptitiously and gradually, especially with hostile intent: The troops infiltrated the enemy lines.
- to pass a small number of (soldiers, spies, or the like) into a territory or organization clandestinely and with hostile or subversive intent: The intelligence agency infiltrated three spies into the neighboring country.
- to pass into or through a substance, place, etc., by or as by filtering.
- to penetrate tissue spaces or cells.
- something that infiltrates.
- any substance penetrating tissues or cells and forming a morbid accumulation.
- to undergo or cause to undergo the process in which a fluid passes into the pores or interstices of a solid; permeate
- to pass undetected through (an enemy-held line or position)
- to gain or cause to gain entrance or access surreptitiously
- something that infiltrates
- any substance that passes into and accumulates within cells, tissues, or organs
- a local anaesthetic solution injected into the tissues to cause local anaesthesia
