Pronunciation: (pak'u-stan", pä"ku-stän'),[key] —n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947–71 to distinguish it from East Pakistan (now Bangladesh). 102,200,000; 310,403 sq. mi. (803,881 sq. km).Cap.:Islamabad.
2. (before 1947) the predominantly Muslim areas of the peninsula of India as distinguished from Hindustan, the predominantly Hindu areas.