Yugoslavic

WordReference Random House Unabridged Dictionary of American English © 2025

Yu•go•sla•vi•a  (yo̅o̅′gō slä′vē ə), n. 

1. Place Names a federal republic in S Europe: since 1992 comprised of Serbia and Montenegro. 10,573,928;
   39,449 sq. mi. (102,173 sq. km).[Cap.:] Belgrade.
2. Place Names Formerly (1918–29), Kingdom of the Serbs, Croats, and Slovenes. a republic in S Europe on the Adriatic: formed 1918 from the kingdoms of Serbia and Montenegro and part of Austria-Hungary;
   a federal republic 1945-91 comprised of Bosnia and Herzegovina, Croatia, Macedonia, Montenegro, Serbia, and Slovenia.

Also, Jugoslavia.  Yu′go•sla′vi•an, adj., n. 
Yu′go•slav′ic, adj.