collision avoidance

This term is primarily a technical compound noun used in aviation, maritime navigation, and robotics. It describes a proactive safety strategy rather than a reactive one, emphasizing the prevention of an accident before it occurs through active monitoring and steering adjustments.

In professional contexts, it is often used as a modifier for specific systems, such as "collision avoidance system" (CAS) or "collision avoidance maneuvers." Because it refers to a conceptual process or a technical capability, it is treated as an uncountable noun and does not typically take a plural form.