What does the word monomaniac mean?

Usage examples for monomaniac

  1. The closer the identification becomes, the more confirmed is the monomaniac in his madness, the character of which varies with the temperament of the individual. – The Book of Were-Wolves by Sabine Baring-Gould
  2. Morrison in his turn gave an exclamation which seemed the vent of long- stored exasperation, and said with heat: Look here, Page, you're getting to be a perfect monomaniac on the subject! – The Bent Twig by Dorothy Canfield
  3. He was no fanatical monomaniac. – Father and Son by Edmund Gosse