Definition of "Amazon" :

noun: mainly green tropical American parrots

noun: a major South American river; arises in the Andes and flows eastward into the South Atlantic; the world's 2nd longest river (4000 miles)

noun: (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)

noun: a large strong and aggressive woman