treatment of mental disorder by any of various means involving communication between a trained person and the patient and including counseling, psychoanalysis, etc.
See psychotherapy in American Heritage Dictionary 4
nounpl.psy·cho·ther·a·pies
The treatment of mental and emotional disorders through the use of psychological techniques designed to encourage communication of conflicts and insight into problems, with the goal being relief of symptoms, changes in behavior leading to improved social and vocational functioning, and personality growth.