1. The countries in southwestern Asia that border the Persian Gulf 
2. A region of the United States comprising states bordering the Gulf of Mexico; Alabama and Florida and Louisiana and Mississippi and Texas

Type of: geographic area, geographic region, geographical area, geographical region

Part of: South

Encyclopedia: Gulf States

• hydrogel
• hydrogen
• hydrogen atom
• hydrogen azide
• hydrogen bond
• hydrogen bromide
• hydrogen carbonate
• hydrogen chloride
• hydrogen cyanide
• hydrogen fluoride
• hydrogen iodide
• hydrogen ion
• hydrogen ion concentration
• hydrogen peroxide
• hydrogen sulfide
• hydrogen sulphide
• hydrogen-bomb
• hydrogenate
• hydrogenation
• hydrogenise
• hydrogenize
• hydrogenous
• hydrographer
• hydrographic
• hydrographical