(Anatomy & Biology)a structure resembling an ear or ear lobe (剖,生)耳状部;耳状器官 ■another term for atrium (of the heart) 同 atrium (心房) ■a small muscular flap on the surface of each atrium (心房表面的)心耳 ■the external part or pinna of the ear 耳廓
语源
late Middle English : from Latin auricula 'external part of the ear', diminutive of auris 'ear'