Zhuhai (jō-hĪ) [key], city (1994 est. pop. 308,600), S Guangdong prov., on the Pearl River, N of Macao. Designated a special economic zone in 1979, the city has benefited greatly from its proximity to Macao. It has a variety of industries, including textiles, electronics, fishing, and tourism. A major airport opened there in 1995, the same year that saw the opening of the Zhuhai port, a deepwater harbor built on Gaolan Island. The name sometimes appears as Chu-hai.