nihilism

nihilism definition - medical

ni·hil·ism (nīˈə-lĭzˌəm, nēˈ-)

noun
  1. The belief that destruction of existing political or social institutions is necessary for future improvement.
  2. A delusion, experienced in some mental disorders, that the world or one's mind, body, or self does not exist.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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