Gulf of Mexico gul·fof·me·xico uncommon noun 1. an arm of the Atlantic south of the United States and east of Mexico SynonymsGulf of MexicoGolfo de Mexico Related words Broader terms gulf Parts Atlantic Part of Bay of CampecheGalveston BayMobile BayTampa Bay WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
