monomania [ˈmɑ:nəˈmeɪniə]

例句:

• The western world was indeed black with homicidal monomania.
  西方世界的确被杀人狂抹黑了.
  
• "It is the sort of malady which we call monomania," said the doctor.
  “这种病我们叫做偏执狂。”医生说道。
  
• Dedication is thought to be synonymous with monomania.
  来自THETIMES
• But the point was not the wrong fact, it was the monomania that gave rise to it.
  来自THETIMES