[{"Bold_text": "noun", "List Items": ["Anatomy.the projecting outer portion of the ear; pinna.Also calledau·ric·u·lar ap·pend·age[aw-, rik, -y, uh, -ler , uh, -, pen, -dij].an ear-shaped appendage projecting from each atrium of the heart.(loosely) the atrium.", "the projecting outer portion of the ear; pinna.", "Also calledau·ric·u·lar ap·pend·age[aw-, rik, -y, uh, -ler , uh, -, pen, -dij].an ear-shaped appendage projecting from each atrium of the heart.", "(loosely) the atrium.", "Botany, Zoology.a part like or likened to an ear."]}]