\Sym*po"si*ac\, a. [L. symposiacus, Gr. ?.]
Of or pertaining to compotations and merrymaking; happening
where company is drinking together; as, symposiac meetings.
      Symposiac disputations amongst my acquaintance.
                                               --Arbuthnot.

\Sym*po"si*ac\, n.
A conference or conversation of philosophers at a banquet;
hence, any similar gathering.