Mackenzie, Sir Alexander Mackenzie -- (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))
dictionary, definition of, free online dictionary, online dictionary, English dictionary, dict, diction, dictonary, glossary, define, definitions, meaning, word of the day, spelling, pronunciation, dictio, dictiona, dic, dicti, dictionar