a. Penetrating among or between other substances; penetrating each the other; mutually penetrative. [ 1913 Webster ]
a. [ Cf. F. pénétratif. ]
His look became keen and penetrative. Hawthorne. [ 1913 Webster ]
Led on by skill of penetrative soul. Grainger. [ 1913 Webster ]
n. The quality of being penetrative. [ 1913 Webster ]