Source : Webster's Revised Unabridged Dictionary (1913)

Mandarin \Man`da*rin"\, n. [Pg. mandarim, from Malay mantr[=i]
   minister of state, prop. a Hind. word, fr. Skr. mantrin a
   counselor, manira a counsel, man to think.]
   1. A Chinese public officer or nobleman; a civil or military
      official in China and Annam.

   2. (Bot.) A small orange, with easily separable rind. It is
      thought to be of Chinese origin, and is counted a distinct
      species ({Citrus nobilis})

Source : WordNet®

mandarin
     n 1: shrub or small tree having flattened globose fruit with very
          sweet aromatic pulp and thin yellow-orange to
          flame-orange rind that is loose and easily removed;
          native to southeastern Asia [syn: {mandarin orange}, {mandarin
          orange tree}, {Citrus reticulata}]
     2: a member of an elite intellectual or cultural group
     3: any high government official or bureaucrat
     4: a high public official of imperial China
     5: a somewhat flat reddish-orange loose-skinned citrus of China
        [syn: {mandarin orange}]
     6: the dialect of Chinese spoken in Beijing and adopted as the
        official language for all of China [syn: {Mandarin Chinese},
         {Mandarin dialect}, {Beijing dialect}]