| an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language. |
| (used as a nonsense word by children to express approval or to represent the longest word in English.) |
plenipotentiary (ˌplɛnɪpəˈtɛnʃərɪ) ![]() | |
| —adj | |
| 1. | (esp of a diplomatic envoy) invested with or possessing full power or authority |
| 2. | conferring full power or authority |
| 3. | (of power or authority) full; absolute |
| —n , -aries | |
| 4. | See also envoy a person invested with full authority to transact business, esp a diplomat authorized to represent a country |
| [C17: from Medieval Latin plēnipotentiārius, from Latin plēnus full + potentia | |