Définitions
1.NounA member of a parliament, congress or an elected national legislative body of another name.
2.NounA person well-versed in parliamentary procedure.
3.NounAn officer in most legislative bodies charged with being well-versed in the parliamentary rules of that legislative house, and whose rulings are taken as authoritative, to be appealed only to the whole of the house itself under special rules.
4.AdjectiveOf or relating to a parliament; favouring the establishment of a parliament."a parliamentarian democracy; the parliamentarian movement"
5.AdjectiveOf or relating to the Parliamentarians (supporters of the parliament during the English Civil War (1642–1651)).