Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: obsession  ub'se-shun
  1. An irrational motive for performing trivial or repetitive actions, even against your will
    "her obsession to wash her hands repeatedly";
    - compulsion
  2. An unhealthy and compulsive preoccupation with something or someone
    - fixation

Derived forms: obsessions

Type of: irrational motive, preoccupation

Encyclopedia: Obsession