Americus Vespucius ame·ri·cus·vespucius uncommon noun 1. Florentine navigator who explored the coast of South America; America was named in his honor (1454-1512) SynonymsVespucciAmerigo VespucciAmericus Vespucius Related words Broader terms navigator WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
