Inter-System

Inter-System:

Inter-system describes events, activities, conversations, etc. that occur within or between two or more systems, mostly in shared reality.

Related Terms
Anything occuring within a system may be described as intra-system.

Anything occuring between a system and anything outside of that system may be described as outrasystem. Inter-system may be considered a specific type of outrasystem.

Term Origins
Inter- is "a prefix meaning 'between,' used in the formation of compound words." A system is a collection of headmates in the same brain/body. Therefore, inter-system refers to things occurring between collections of headmates.