ple·na·ry 
(plēnə-rē, plĕnə-)
(plēnə-rē, plĕnə-)adj.
1. Complete in all respects; unlimited or full: a diplomat with plenary powers.
2. Fully attended by all qualified members: a plenary session of the council.
[Late Latin plēnārius, from Latin plēnus, full; see pelə-1 in the Appendix of Indo-European roots.]
plena·ri·ly adv.