back channel

== English == === Pronunciation === === Noun === back channel (plural back channels) The smaller of two channels in a river that diverge to form an island. A secondary channel of activity, typically in parallel with primary channels and somewhat independent of them. An unofficial communications channel used to make informal or subversive negotiations. (computing) A real-time online discussion that occurs simultaneously with a verbal presentation. (linguistics) A gesture or short prompt by which a listener invites a speaker to continue. ==== Coordinate terms ==== side-channel ==== Related terms ==== backchannel back-channel