COURSE By N., Pam M.S. - April 7, 2013 noun. The period of time in which a disease, sickness, disorder, or remediation generally takes to reach completion. COURSE: "The prognosis changed throughout the course of Mariah's illness." Related Psychology Terms STUDENT'S DISEASE TERTIARY PREVENTION BENDS TOPECTOMY PROCESS-REACTIVE PHARMACOTHERAPY SINGLE-GENE DISORDER TRACTOTOMY TRICHOTILLOMANIA TRIHEXYPHENIDYL Cite this page: N., Pam M.S., "COURSE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/course/ (accessed October 20, 2021).