interlock

This term describes a physical or conceptual binding where components are not merely touching, but are woven or slotted together to create a secure, unified structure. It evokes a sense of mechanical precision and stability, where the removal of one piece would require the simultaneous movement or removal of another.

In technical and safety contexts, the word refers to a critical fail-safe mechanism. This specific usage denotes a dependency where one action is strictly prohibited until a prerequisite safety condition is satisfied, ensuring that dangerous operations cannot occur accidentally.