From Longman Dictionary of Contemporary Englishplenaryple‧na‧ry /ˈpliːnəri/ adjective [only before noun] formal 1 PGMEETinvolving all the members of a committee, organization etc The conference ended with a plenary debate.2 COMPLETEplenary powers are complete powers with no limit He was given plenary powers to negotiate with the rebels. —plenary noun [countable]
Examples from the Corpus
plenary• The conference will combine plenary addresses with specialist seminars and workshops.• On June 21 the plenary conference was suspended ahead of three weeks of committee-level meetings.• The Council has plenary powers to administer the Agreement.• The envoy was given plenary powers to negotiate with the rebels.• But it gave an added attraction to the plenary session anyway.• The party held a plenary session in April.• In considering whether candidate items were essential, each subgroup used a modified Delphi technique25 that was replicated in the plenary sessions.• The conference included small-group and plenary sessions.• a plenary speechFrom Longman Business Dictionaryplenaryple‧na‧ry /ˈpliːnəri/ adjective [only before a noun] formal involving all the members of a committee or other group that meetsThe proposal was due for debate at a plenary session of the European Parliament.Origin plenary (1500-1600) Late Latin plenarius, from Latin plenus; → PLENTY3 