1)

The act of entering into or through something.

2)

An idiom referring to offensive force directed slightly beyond the surface of an target, for the purpose of transferring the energy from the strike deeper into the mass of the target.

Comments:

1)

In this context, this is the same as layman's usage.

This usage can be to refer to both mental and physical scenarios.

Most commonly, this term used in this context would be to describe stabbing depth.

2)

Penetration can be thought of as a way of transferring energy from a strike to a target through the amount of depth into the surface of the target the energy is relayed.

Example(s):

1)

The knife penetrated the target the entire length of the blade.

2)

The punch was turned into a push by continuing to penetrate further into the target.

Related Definition(s):

1)

Applied, Bear hug, Bite, Choke, Contact, Dead, Defense, Dimension, Distance, Execute, Grab, Hug, Kick, Major, Maneuver, Method, Minor, Move, Pinch, Punch, Push, Press, Sandwich, Scissor, Shear, Specialized, Squeeze, Stomp, Strike, Target, Travel, Vise-Like, Weapon

Related Term(s):

1)

Colliding Forces, Environmental Object, Environmental Weapon, Four Stages of Range, Man-Made Weapon, Natural Weapon, Purposeful Aggression