1. the action or process of entering or gaining access to an organization or place secretly, especially to acquire unauthorized information or cause damage
2. the process by which water on the ground surface enters the soil through pore spaces and cracks
Usage: hydrology; environmental science
3. the abnormal accumulation of substances or cells in body tissues
Usage: medical

Examples

• The security team discovered multiple infiltrations of their computer network.
• Enemy infiltrations were detected along the border.
• Heavy rainfall caused rapid infiltrations into the sandy soil.
• The doctor noted fatty infiltrations in the patient’s liver tissue.
• Spy agencies are trained to prevent foreign infiltrations.
• Poor drainage systems can reduce water infiltrations during storms.