You searched for: “intercommunication”
intercommunication (s) (noun), intercommunications (pl)
The fact of being linked in such a manner as to allow for the transmissions of messages: "The intercommunication that existed between the office staff and the administration area allowed for efficient dialogs about office policies."
This entry is located in the following units: -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 54) commu-, comm- (page 3) inter-, intero- (page 3)