- the act, power, or an instance of penetrating
- the act or an instance of inserting the penis into the vagina or anus
- the depth to which something penetrates, as a military force into enemy territory
- the extension of the influence of a country over a weaker one by means of commercial investments, loans, diplomatic maneuvers, etc.
- keenness of mind; discernment; insight
Origin of penetrationLate Latin penetratio