n. [ L. pererrare, pererratum, to wander through. ] A wandering, or rambling, through various places. [ R. ] Howell. [ 1913 Webster ]
n. [ L. penetratio: cf. F. pénétration. ]
And to each in ward part,
With gentle penetration, though unseen,
Shoots invisible virtue even to the deep. Milton. [ 1913 Webster ]
A penetration into the difficulties of algebra. Watts. [ 1913 Webster ]