Definition of metacommunication in US English:

metacommunication

noun

Linguistics
  • Communication which underlies or takes place alongside a given act of communication, and serves to supplement or enhance it; an instance of this.

Origin

1950s. From meta- + communication. Compare metacommunicative.

Pronunciation

metacommunication

/ˌmɛtəkəˌmjuːnɪˈkeɪʃn/