0 a person who has the authority to represent his or her country, especially in another country
1 relating to or having the authority to represent your country in another country:
The King granted the necessary plenipotentiary documents to give full power to delegates.
She sent ambassadors with plenipotentiary power to the city, to discuss peace.
He was a Minister with plenipotentiary powers, and therefore, he was a diplomatic agent.
The relaxation involved here goes with the group strategy of naming one individual, or perhaps a small set of individuals, as dictator or plenipotentiary.
I state at once that we were not plenipotentiaries.
We met as experts and not as plenipotentiaries.
Those who are entrusted with the conduct of these negotiations are not plenipotentiaries.
How far or how nearly are these agents plenipotentiaries?
