Noun | 1. | penetration - an attack that penetrates into enemy territory attack, onrush, onset, onslaught - (military) an offensive against an enemy (using weapons); "the attack began at dawn" interpenetration - the action of penetrating between or among breakthrough - a penetration of a barrier such as an enemy's defense invasion - the act of invading; the act of an army that invades for conquest or plunder infiltration - a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection) |
2. | penetration - clear or deep perception of a situation perception - knowledge gained by perceiving; "a man admired for the depth of his perception" | |
3. | penetration - the act of entering into or through something; "the penetration of upper management by women" interpenetration, permeation - mutual penetration; diffusion of each through the other market penetration - the extent to which a product is recognized and bought by customers in a particular market | |
4. | penetration - the ability to make way into or through something; "the greater penetration of the new projectiles will result in greater injuries" ability - the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment | |
5. | penetration - the depth to which something penetrates (especially the depth reached by a projectile that hits a target) | |
6. | penetration - the act (by a man) of inserting his penis into the vagina of a woman carnal knowledge, copulation, sex act, sexual congress, sexual relation, relation, congress - the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur |