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Webster 1913 Edition

(plē̍-nĭp′ō̍-tent)

Adj.

[L.

plenus

full +

potens

-entis

, potent.]

Possessing full power.

[R.]

Milton.

Adj.

[L. plenipotens, supra.]

Possessing full power.

plenipotent ‎(comparative more plenipotent, superlative most plenipotent)

Possessing full power.
(Can we find and add a quotation of Milton to this entry?)