[n. of action from prec.: cf. mod.F. compénétration.] The action of compenetrating, mutual penetration.
1802. Playfair, Illustr. Hutton. Th., 246. The compenetration, as it may be called, of two heterogeneous substances.
1849. J. Wilson, in Blackw. Mag., LXVI. 252. This absorption and compenetration of the two ideas.
