PARENCHYMA By N., Sam M.S. - 1 noun. the operating tissues of a gland or organ, as differentiated from structurally supportive or connecting tissues. PARENCHYMA: "The parenchyma have likely been malfunctioning for some time now." Related Psychology Terms SUPPORTIVE THERAPY A Comparison of Maternal and Paternal Filicide CHILD PSYCHIATRY MENTAL RETARDATION (CAUSES) EFFECTORS CEREBELLUM RECONSTRUCTIVE THERAPY CORTEX CEREBRAL CORTEX MENTAL HEALTH AND ECONOMIC LEVEL Cite this page: N., Sam M.S., "PARENCHYMA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/parenchyma/ (accessed November 26, 2021).