BOUNDARY By N., Pam M.S. - April 7, 2013 1. A psychological boundary protecting an individual and helps to set a realistic limit in an activity or relationship. 2. Psychotherapy. Ground rules set for ttreatment that need to be respected. BOUNDARY: "Joe's therapist worked out a defined boundary on which to work in." Related Psychology Terms BOUNDARY BUFFERING INTERNAL BOUNDARY BOUNDARY SYSTEM BOUNDARY SYSTEM EXTERNAL BOUNDARY BOUNDARY ISSUES TREATMENT PROTOCOL MIGRATION BEHAVIOR EGO BOUNDARY Cite this page: N., Pam M.S., "BOUNDARY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/boundary-2/ (accessed April 4, 2020).