Caithness (37), a level, except in the W. and S., bare, and somewhat barren, county in the NE. of Scotland, 43 m. by 28 m., with a bold and rocky coast; has flagstone quarries; fishing the chief industry, of which Wick is the chief seat; the inhabitants are to a great extent of Scandinavian origin, and English, not Gaelic, is the language spoken.