plenary
adjective
[ ˈpliːnəri ]
• unqualified; absolute.
• "crusaders were offered a plenary indulgence by the Pope"
• (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"
plenary
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’.