• (British) IPA: /ˌɪntəkəmjuːnɪˈkeɪʃ(ə)n/

intercommunication

1. Mutual communication.
   • 1603, Michel de Montaigne, chapter 12, in John Florio, transl., The Essayes, […], book II, printed at London: By Val[entine] Simmes for Edward Blount […], OCLC 946730821 ↗:

     Even in beasts, that have no voice at all, by the reciprocall kindnesse, which we see in them, we easily inferre there is some other meane of entercommunication: their jestures treat, and their motions discourse.

   • 2003, Tom Service, The Guardian, 13 Jan.:

     Starting in their different musical worlds, they attempted endless ways of achieving a partnership, at last finding some kind of "intercommunication".