COLLOQUIUM Meaning of COLLOQUIUM in English [ kə'ləʊkwɪəm ]■ noun ( plural ~s or colloquia -kwɪə ) an academic conference or seminar.OriginC16 (denoting a conversation): from L., from colloqui 'to converse'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004