penetration

penetration is a   Noun

Definition:

[1] The act or process of penetrating, piercing, or entering; also, the act of mentally penetrating into, or comprehending, anything difficult. And to each in ward part, With gentle penetration, though unseen, Shoots invisible virtue even to the deep. Milton. A penetration into the difficulties of algebra. Watts.

[2] Acuteness; insight; sharp discoverment; sagacity; as, a person of singular penetration. Walpole.

Synonyms: