Pĕn'e-trā'tion, n.
[Lat. penetratio, Fr. pénétration, Pr. penetratio, Sp. penetracion, It. penetracione.]
Sense 1. The act of penetrating, piercing, or entering; physical or mental entrance into the interior of any thing.
And to each inward part, With gentle penetration, though unseen, Shoots invisible virtue, e'en to the deep. Milton.
Sense 2. Acuteness; sagacity; insight; sharp discernment; as, a man of great or nice penetration.
Synonyms—Discernment; sagacity; acuteness; sagaciousness; sharpness; discrimination. See DISCERNMENT and SAGACITY.