CARIACO, a seaport-town of South America, in the republic of Venezuela and county of Cumana. It is situated in a large plain near the head of the gulf of the same name, 40 miles E.N.E. of Cumana. The climate is unhealthy and the town small, but it has some trade in cotton. Pop. 7000; N. Lat. 10. 30., W. Long. 63. 40.