PLENIPOTENTIARY

plenipotentiary. Plenipotentiary, n. one invested with full power

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Plen′i‐po‐ten″ti‐a‐ry (plĕn″ĭ‐pō̍‐tĕn″shĭ‐ā̍‐ry̆), n.; pl. Plenipotentiaries (#). [[LL. plenipotentiarius: cf. F. plénipotentiaire.]] 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.