/tuy"land', -leuhnd/ , n.
1. Formerly, Siam . a kingdom in SE Asia: official name of Siam 1939-45 and since 1949. 59,450,818; 198,242 sq. mi. (513,445 sq. km). Cap.: Bangkok.
2. Gulf of . Also called Gulf of Siam . an arm of the South China Sea, S of Thailand.