Wordnet 3.0
NOUN (1)
1.
a seaway involving the Saint Lawrence River and the Great Lakes that was developed jointly by Canada and the United States;
oceangoing ships can travel as far west as Lake Superior;
[syn: Saint Lawrence Seaway, St. Lawrence Seaway]
WordNet (r) 3.0 (2006):
St. Lawrence Seaway
n 1: a seaway involving the Saint Lawrence River and the Great
Lakes that was developed jointly by Canada and the United
States; oceangoing ships can travel as far west as Lake
Superior [syn: Saint Lawrence Seaway, St. Lawrence
Seaway]