1a Hist. from 1791-1841, the official name of the province lying between the Ottawa River and New Brunswick, now included in Quebec.
See also: L.C. (def. 1)
1b Hist. from 1841-1867, the popular name for Canada East.
See also: Canada East
2 since 1867, an unofficial traditional name for Quebec.
See also: Upper Canada (def. 2)