Jura UK /ˈd͡ʒʊəɹə/US /ˈd͡ʒʊɹə/ noun4 •A mountain range on the border of France and Switzerland, extending into Germany; in full, Jura Mountains.Occasionally, a sigh of mountain air came from the distant Jura, fading along the plain. — 1846 •An island of the Inner Hebrides in Argyll and Bute council area, Scotland.Between the north end of Jura and the small isle of Skarba there is a famous whirlpool, called Cory-vrekan, from Brecan, son of a king of Denmark, who perished in this gulph. — 1839 •A department of Bourgogne-Franche-Comté, France. Capital: Lons-le-Saunier. •A canton of Switzerland. Capital: Delémont.