Colloquium
Part of speech: noun
Definition: A colloquy; a meeting for discussion. An academic meeting or seminar usually led by a different lecturer and on a different topic at each meeting. An address to an academic meeting or seminar. That part of the complaint or declaration in an action for defamation which shows that the words complained of were spoken concerning the plaintiff.
Symposium
Part of speech: noun
Definition: A conference or other meeting for discussion of a topic, especially one in which the participants make presentations.(in ancient Greece) A drinking party, especially one with intellectual discussion.