rare. [Anglicized form (after LAGOON1) of It. lagone, augmentative of lago:—L. lacus LAKE sb.4] In Tuscany, the basin of a hot spring from which borax is obtained.
1868. Dana, Min. (ed. 5), 882. Larderellite … Occurs at the Tuscan lagoons.
1885. Geikie, Text-bk. Geol., III. I. i. § 2 (ed. 2), 218. The lagoons of Tuscany.
