Definition of "fanaticism" []

• Excessive, irrational zeal. (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.

• ""I'm afraid that fanaticism is like a black plague, it's contagious," Wiesel continued."
• "Religions fanaticism is the malady and you are trying to spread it further. bitblt says:"
• "And for the record not all extremists are Christians and Muslims but religious fanaticism is alive and well and the non-extremists of those two religions seem to be afraid to stand up to them."