fiery cross

noun

1. a burning cross, the rallying symbol of ancient Scotland and later of the Highlanders in case of war; later adopted by other organizations, including the Ku Klux Klan.

noun

1. a burning cross, used as a symbol by the Ku Klux Klan
2. a wooden cross with ends charred or dipped in blood formerly used by Scottish Highlanders to summon the clans to battle