Found 2 items, similar to intercommunication.
English → English (WordNet) Definition: intercommunication intercommunication n : mutual communication; communication with each other; “they intercepted intercommunication between enemey ships”
English → English (gcide) Definition: Intercommunication Intercommunication \In`ter*com*mu`ni*ca"tion\, n. Mutual communication. --Owen. [1913 Webster]