PINNA By N., Pam M.S. - April 7, 2013 the portion of the exterior ear which projects past the head. Commonly referred to as auricle. PINNA: "Piercing of the pinna is a common practice." Related Psychology Terms VULVA PHEROMONE PREOCCUPATION CORTICONUCLEAR FIBER PALEOCEREBELLUM PARAHIPPOCAMPAL GYRUS PARATAXIC DISTORTION ORAL-RECEPTIVE PERSONALITY PERIPHERY ORIENTING RESPONSE Cite this page: N., Pam M.S., "PINNA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pinna/ (accessed October 23, 2020).