OREXIS By N., Pam M.S. - April 7, 2013 the affective, appetitive personality of an activity or action, versus the mental facets. Commonly referred to as orexia. OREXIS: "His orexis for the woman was beginning to interfere with his work performance." Related Psychology Terms CULTURAL-FAMILIAL MENTAL RETARDATION PERSISTENCE ONTOGENETIC PSYCHOLOGY NONSHARED ENVIRONMENT AFFECTIVE-COGNITIVE CONSISTENCY PHOTOTHERAPY COVERT POSITIVE REINFORCEMENT BINARY VARIABLE SEDATIVE CONSCIOUSNESS Cite this page: N., Pam M.S., "OREXIS," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/orexis/ (accessed September 27, 2020).