A meeting or conference for the discussion of a topic or special subject: A symposiac used to be a convivial meeting for drinking, music, and intellectual discussion among the ancient Greeks.

At the symposiac, or symposium, the audience is made up of the participants who make presentations and at which there is also a banquet.

Relating to a congress or meeting; symposial: The friends met early in the day in order to discuss the symposiac points of interest which were to be talked about later among the participants.