Macao, small island at the mouth of the Canton River, 100 m. S. of Canton, forming with Colovane and Taipa since 1557 a Portuguese station (50, mostly Chinese); is a very healthy port, though very hot; formerly it was a centre of the Coolie trade, abolished in 1873, but its anchorage is bad, and since the rise of Hong-Kong its commerce has suffered severely; chief import opium, export tea; it is the head-quarters of French missions in China.