Definition of "ultranationalism" [ultranationalism]

• Extreme nationalism, especially when opposed to international cooperation. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Among the examples he used to make his case was the fate of Bosnia's Muslims, who for generations lived in peace with their Christian compatriots, at least until those compatriots were swayed by Yugoslav ultranationalism to ignore or even take part in a genocidal campaign to wipe out the Muslim population."
• "(YB is really just Russian ultranationalism, Zhirinovsky-style, transplanted to the West Bank.)"
• "After the nationalist riot, President Dmitry Medvedev warned that ultranationalism is a security threat to the state."