encapsulation

1. Computing: Enclosing of a set of data (code) into another set of code to protect its integrity when transferring it between non-compatible systems, or to secure it from unauthorized access during transmission.

2. Waste disposal: Packing of hazardous waste in containers make of impervious and non-reactive material (such as glass or dense plastic) and sealing of this container in another one of concrete, plastic, or steel for burial or storage.