(anc. geog.), an oblong island, stretching out between Attica and Thessaly, opposite to Boeotia; from which it is separated by a narrow strait called Euripus. This island, never exceeding 40, nor ever falling short of two miles in breadth, is in length 150 miles, and in compass 365, according to Pliny. Now Negropont, from its principal town, which was anciently called Chalcis.