Pronunciation: (yem'un, yā'mun),[key] —n. 1. Republic of, a country in S Arabia, formed in 1990 by the merger of the Yemen Arab Republic and the People's Democratic Republic of Yemen. 12,000,000; 207,000 sq. mi. (536,130 sq. km).Cap.: ( political ) Sanعa.Cap.: ( economic ) Aden.
2. Also called North Yemen. a former country in SW Arabia: since 1990 a part of the Republic of Yemen.Cap.:Sanعa.
3. Also called South Yemen. a former country in S Arabia: since 1990 a part of the Republic of Yemen.Cap.:Aden.