Definition of St Lawrence Seaway in English:

St Lawrence Seaway

proper noun

  • A waterway in North America, which flows for 3,768 km (2,342 miles) through the Great Lakes and along the course of the St Lawrence River to the Atlantic. It is open along its entire length to ocean-going vessels.

Pronunciation:

St Lawrence Seaway

/sntlɒrənsˈsiːweɪ/