TESTIMONY By N., Pam M.S. - April 29, 2013 noun. proof given in court by a person who is has taken an oath. TESTIMONY: "The doctor's testimony was deemed to be as sufficient as that of an expert's." Related Psychology Terms EYEWITNESS TESTIMONY LEGAL TESTIMONY PROOF CONFIRMATION BIAS PAROLE GRIGGS V DUKE POWER CO PROBATION CONSERVATOR LICENSE CORROBORATION Cite this page: N., Pam M.S., "TESTIMONY," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/testimony/ (accessed October 18, 2019).