a. Penetrating among or between other substances; penetrating each the other; mutually penetrative. [ 1913 Webster ]
n. The act or process of penetrating between or within other substances; mutual penetration; also, the result of a process of interpenetration. Milman. [ 1913 Webster +PJC ]
n. The act or process of penetrating between or within other substances; mutual penetration; also, the result of a process of interpenetration. Milman. [ 1913 Webster +PJC ]