plenary

 
Pronunciation: /ˈpliːnəri/

adjective

  • 1unqualified; absolute: crusaders were offered a plenary indulgence by the Pope
  • 2(of a meeting) to be attended by all participants at a conference or assembly, who otherwise meet in smaller groups: a plenary session of the European Parliament

noun

  • a meeting or session attended by all participants at a conference or assembly: working parties would report back to the plenary with recommendations

Origin:

late Middle English: from late Latin plenarius 'complete', from plenus 'full'