The Collaborative International Dictionary of English v.0.48:

Dorado \Do*ra"do\, n. [Sp. dorado gilt, fr. dorar to gild, fr.
   L. deaurare. See 1st Dory, and cf. Fl Dorado.]
   1. (Astron.) A southern constellation, within which is the
      south pole of the ecliptic; -- called also sometimes
      Xiphias, or the Swordfish.
      [1913 Webster]

   2. (Zool.) A large, oceanic fish of the genus Coryph[ae]na.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Dorado
    n 1: a constellation in the southern hemisphere near Reticulum
         and Pictor; contains most of the Large Magellanic Cloud

U.S. Gazetteer Counties (2000):

Dorado -- U.S. Municipio in Puerto Rico
   Population (2000):    34017
   Housing Units (2000): 13067
   Land area (2000):     23.328554 sq. miles (60.420674 sq. km)
   Water area (2000):    30.497867 sq. miles (78.989110 sq. km)
   Total area (2000):    53.826421 sq. miles (139.409784 sq. km)
   Located within:       Puerto Rico (PR), FIPS 72
   Location:             18.442798 N, 66.276894 W
   Headwords:
    Dorado
    Dorado, PR
    Dorado Municipio
    Dorado Municipio, PR