n. Hist. the vast region lying between California and Alaska on the Pacific coast of North America, that part south of the 49th parallel being ceded to the United States by Great Britain in 1846.
See also: Oregon country
- 1846  Of late, the Eagle, soaring high over the "snow-capped" hills of Oregon, Said he, and winked his hawkish eye, "This here I'll lay my talons on."
- 1963  The Democrats took up . . . a demand for the whole of Oregon up to Russian Alaska.