Saint Lawrence River

• St. Lawrence River, Saint-Lawrence River, St.-Lawrence River, St-Lawrence River

Saint Lawrence +‎ river. Calque of French fleuve Saint-Laurent. From Middle French Fleuve sainct Laurens. Named after Roman martyr Saint Lawrence. Coined by French explorer Samuel de Champlain in 1604. In turn named after the Saint Lawrence estuary, itself coined by another French explorer, Jacques Cartier, which lies at the mouth of the river. That bay was named for being discovered on the Feast Day of Saint Lawrence, 10 August 1535

Saint Lawrence River

1. A large river in Canada, connecting the Great Lakes with the Atlantic Ocean