Pen"e*trate (?), v. t. [imp. & p. p. Penetrated (?); p. pr. & vb. n. Penetrating.] [L. penetratus, p. p. of penetrare to penetrate; akin to penitus inward, inwardly, and perh. to pens with, in the power of, penus store of food, innermost part of a temple.] 1. To enter into; to make way into the interior of; to effect an entrance into; to pierce; as, light penetrates darkness.

2. To affect profoundly through the senses or feelings; to touch with feeling; to make sensible; to move deeply; as, to penetrate one's heart with pity. Shak.

The translator of Homer should penetrate himself with a sense of the plainness and directness of Homer's style.
M. Arnold.

3. To pierce into by the mind; to arrive at the inner contents or meaning of, as of a mysterious or difficult subject; to comprehend; to understand.

Things which here were too subtile for us to penetrate.

Pen"e*trate, v. i. To pass; to make way; to pierce. Also used figuratively.

Preparing to penetrate to the north and west.
J. R. Green.

Born where Heaven's influence scarce can penetrate.

The sweet of life that penetrates so near.