Symposium (noun)

1. An occasion on which several experts give short talks on a particular topic or issue, typically to an audience of specialists in that field.
2. A formal gathering at which experts in a particular field meet to discuss and exchange ideas on a particular topic or issue.
3. A collection of short speeches or papers on a particular subject, written by various authors.

Origin:

Late 16th century: from latin, from greek summposion, from sum- "together with" + posis "drinking".

Examples:

1. He gave a paper at the symposium on the economic problems of the Third World.
2. The symposium was on the latest advances in cancer research.
3. She was invited to give a keynote address at the symposium.
4. The symposium was attended by leading scientists from around the world.
5. The symposium was divided into three sessions, each covering a different aspect of the topic.