1. Canadian explorer (born in England) who explored the Mackenzie River and who was first to cross North America by land north of Mexico (1764-1820); [syn: Mackenzie, Sir Alexander Mackenzie]
WordNet (r) 3.0 (2006):
Sir Alexander Mackenzie
n 1: Canadian explorer (born in England) who explored the
Mackenzie River and who was first to cross North America by
land north of Mexico (1764-1820) [syn: Mackenzie, Sir
Alexander Mackenzie]