forty-ninth parallel

noun — 2 senses

forty-ninth parallel

noun
1

Canada, US A nickname for the approximately 1200-mile (1900-kilometer) portion of the border between Canada and the USA, extending along the forty-ninth parallel of latitude from Lake of the Woods to the Pacific Ocean.

2

Canada, US, Nonstandard A nickname for the entire border between Canada and the USA.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.