symposium

n. meeting or conference at which a specific topic is discussed; collection of essays or writings on a given subject

Symposium originally referred to a drinking party (the Greek verb sympotein means "to drink together") but has since come to refer to any academic conference, whether or not drinking takes place. The sympotic elegies of Theognis of Megara and two Socratic dialogues, Plato's Symposium and Xenophon's Symposium all describe symposia in the original sense.
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Symposium Medical communication A meeting or collection of views on one topic. See Independent symposium, Sponsored symposium. [more]Symposium - Community and Resources

Noun
1. a meeting or conference for the public discussion of some topic especially one in which the participants form an audience and make presentations
(hypernym) conference

n. symposium, formal meeting for the discussion of a subject, discussion