PINNA By N., Sam M.S. - 7 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 AUDITORY SPACE PERCEPTIO HEARING (AUDITION) HEAD INJURY (ACUTE TRAUMATIC DISORDERS) EQUILIBRIUM (Labyrinthine Sense; Vestibular Sense) HEARING AURICLE HEAD INJURY (CHRONIC TRAUMATIC DISORDERS) BESTIALITY (Zooerasty, Zoophilia) LANGUAGE (Psycholinguistics) MENTAL RETARDATION (CAUSES) Cite this page: N., Sam M.S., "PINNA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pinna/ (accessed June 27, 2022).