Penetration - Definition

n 1: an attack that penetrates into enemy territory [syn:
penetration, incursion]
2: clear or deep perception of a situation [syn: penetration,
insight]
3: the act of entering into or through something; "the
penetration of upper management by women"
4: the ability to make way into or through something; "the
greater penetration of the new projectiles will result in
greater injuries"
5: the depth to which something penetrates (especially the depth
reached by a projectile that hits a target)
6: the act (by a man) of inserting his penis into the vagina of
a woman