The Collaborative International Dictionary of English v.0.48:

Argentine \Ar"gen*tine\, n. [Cf. F. argentin, fr. L. argentum
   silver.]
   1. (Min.) A siliceous variety of calcite, or carbonate of
      lime, having a silvery-white, pearly luster, and a waving
      or curved lamellar structure.
      [1913 Webster]

   2. White metal coated with silver. --Simmonds.
      [1913 Webster]

   3. (Zool.) A fish of Europe (Maurolicus Pennantii) with
      silvery scales. The name is also applied to various fishes
      of the genus Argentina.
      [1913 Webster]

   4. A citizen of the Argentine Republic; an Argentinian.
      [1913 Webster]

   5. Argentina; in this sense, usually preceded by the.
      [PJC]