- a canal extending southeast from the Atlantic Ocean to the Pacific Ocean across the Isthmus of Panama. 40 miles (64 kilometers) long.
- a canal across the Isthmus of Panama, linking the Atlantic and Pacific Oceans: extends from Colón on the Caribbean Sea southeast to Balboa on the Gulf of Panama; built by the US (1904–14), after an unsuccessful previous attempt (1880–89) by the French under de Lesseps. Length: 64 km (40 miles)
