parliamentarian Meaning, Definition & Usage

  1. noun an elected member of the British Parliament: a member of the House of Commons
    Member of Parliament.
  2. noun an expert in parliamentary rules and procedures

WordNet

Par`lia*men*ta"ri*an adjective
Definitions
  1. Of or pertaining to Parliament. Wood.
Par`lia*men*ta"ri*an noun
Definitions
  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.

Webster 1913