The Collaborative International Dictionary
El Doradoes
El Dorado \El` Do*ra"do\, pl. El Doradoes. [Sp., lit., the gilt (sc. land); el the + dorado gilt, p. p. of dorare to gild. Cf. Dorado.]
A name given by the Spaniards in the 16th century to an imaginary country in the interior of South America, reputed to abound in gold and precious stones.
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Any region of fabulous wealth; exceeding richness.
The whole comedy is a sort of El Dorado of wit.
--T. Moore.