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A specific application of lowlands, equivalent to low + lands, due to being of a comparatively low altitude compared to the Highlands.
Etymology from Wiktionary, CC BY-SA 4.0.
lowlands
Today it means: A region of Scotland, spanning from the Highland Boundary Fault to the border with England, encompassing the Central Lowlands, Central Belt (including Edinburgh and Glasgow) and the Scottish Borders, spanning the traditional extent of the Scots language. Full definition →