Definition of Macao
1 peninsula in the province of Guangdong, southeastern China, in the Xi River delta west of Hong Kong
2 special administrative region of southeastern China comprising Macao Peninsula and two small adjacent islands; formerly a Portuguese overseas territory with the city of Macao as its capital area 9.1 square miles (23.6 square kilometers), population 552,503
Note: The economy of Macao is based to a large extent on casinos and tourism.
3 city in the special administrative region of Macao population 469,000
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