Source : Webster's Revised Unabridged Dictionary (1913)

Amazon \Am"a*zon\, n. [L., fr. Gr. ?.]
   1. One of a fabulous race of female warriors in Scythia;
      hence, a female warrior.

   2. A tall, strong, masculine woman; a virago.

   3. (Zo["o]l.) A name numerous species of South American
      parrots of the genus {Chrysotis}

   {Amazon ant} (Zo["o]l.), a species of ant ({Polyergus
      rufescens}), of Europe and America. They seize by conquest
      the larv[ae] and nymphs of other species and make slaves
      of them in their own nests.

Source : WordNet®

amazon
     n 1: a large strong and aggressive woman [syn: {virago}]
     2: (Greek mythology) one of a nation of women warriors of
        Scythia (who burned off the right breast in order to use a
        bow and arrow more effectively)
     3: a major South American river; flows into the South Atlantic;
        the world's 2nd longest river (4000 miles) [syn: {Amazon
        River}]
     4: mainly green tropical American parrots