Interpenetration (noun)

The action or process of penetrating or passing through each other so as to mix or blend.

Origin:

Late 16th century: from inter- + penetration.

Examples:

1. The interpenetration of the two liquids created a new solution.
2. The interpenetration of the two cultures produced a unique hybrid culture.
3. The interpenetration of the two gases created a homogeneous mixture.
4. The interpenetration of the two companies created a powerful conglomerate.
5. The interpenetration of the two fields of study produced a new interdisciplinary field.