a continual thought, concept, picture, or urge which is experienced as invasive and not proper, and results in significant fear, distress, or discomfort.

OBSESSION: "Mark's obsession with checking that the door is locked several times over, the stove is off, the mail was checked, and so on, are all symptoms of a larger disorder- OCD."
Cite this page: N., Pam M.S., "OBSESSION," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/obsession/ (accessed July 27, 2021).