historical country of central Europe that was a kingdom in the Holy Roman Empire and subsequently a province in the Habsburgs’ Austrian Empire. Bohemia was bounded on the south by Austria, on the west by Bavaria, on the north by Saxony and Lusatia, on the northeast by Silesia, and on the east by Moravia. From 1918 to 1939 and from 1945 to 1992 it was part of Czechoslovakia, and since 1993 it has formed much of the Czech Republic.