Pen"e*tra`tion (?), n. [L. penetratio: cf. F. p'en'etration.]
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.
A penetration into the difficulties of algebra.
Acuteness; insight; sharp discoverment; sagacity; as, a person of singular penetration.
Syn. -- Discernment; sagacity; acuteness; sharpness; discrimination. See Discernment, and Sagacity.
© Webster 1913.