The Collaborative International Dictionary
Plenipotentiary \Plen`i*po*ten"ti*a*ry\ (pl[e^]n"[i^]*p[-o]*t[e^]n"sh[i^]*[asl]*r[y^]), n.; pl. Plenipotentiaries. [LL. plenipotentiarius: cf. F. pl['e]nipotentiaire.] A person invested with full power to transact any business; especially, an ambassador or envoy to a foreign court, with full power to negotiate a treaty, or to transact other business.
Wiktionary
n. (plural of plenipotentiary English)
Usage examples of "plenipotentiaries".
All of the barons believed that they acted as the plenipotentiaries of the Archons and therefore, they were the intermediaries between gods and Man.
In which case, they were no longer content with their roles as the plenipotentiaries of a higher, grander authority.
Certainly it’s exceeding instructions, but then governors and plenipotentiaries have unwritten powers and therefore it’s only an expedient extension of necessity.
There were plenipotentiaries in court uniforms so decked with gold that their coats seemed like sheets of light.
Prince Pignatelli, who had been left as vicar-general and viceroy, with orders to defend the kingdom to the last rock in Calabria, sent plenipotentiaries to the French camp before Capua.