\Par`lia*men*ta"ri*an\, a. Of or pertaining to Parliament. --Wood.
\Par`lia*men*ta"ri*an\, n. 1. (Eng. Hist.) One who adhered to the Parliament, in opposition to King Charles I. --Walpole. 2. One versed in the rules and usages of Parliament or similar deliberative assemblies; as, an accomplished parliamentarian.