TESTICLE By N., Sam M.S. - 2 noun. a testis and its encompassing structures, inclusive of the system of ducts within the scrotum. TESTICLE: "Some men have only one testicle, either due to birth abnormality or injury." Related Psychology Terms MENTAL RETARDATION (CAUSES) BIRTH ADJUSTMENTS A Comparison of Maternal and Paternal Filicide NEWBORN INFANT (Neonate) HEAD INJURY (CHRONIC TRAUMATIC DISORDERS) PSEUDOHERMAPHRODITISM ARRESTED TESTIS HEAD INJURY (ACUTE TRAUMATIC DISORDERS) PRENATAL DEVELOPMENT Dissociative Identity Disorder Cite this page: N., Sam M.S., "TESTICLE," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/testicle/ (accessed December 4, 2021).