back channel
noun
Forms back channels
- noun The smaller of two channels in a river that diverge to form an island.
- noun A secondary channel of activity, typically in parallel with primary channels and somewhat independent of them.
- noun An unofficial communications channel used to make informal or subversive negotiations.
- noun (computing) A real-time online discussion that occurs simultaneously with a verbal presentation.
- noun (linguistics) A gesture or short prompt by which a listener invites a speaker to continue.
Sources: Wiktionary — from the Wiktionary entry “back channel”, CC BY-SA 4.0. Details