| 释义 | tragiontrag·i·on(trāj'ē-on), A cephalometric point in the notch just above the tragus of the ear; it lies 1-2 mm below the spine of the helix, which can be palpated.trag·i·on (Tr) (trāj'ē-on) A cephalometric point in the notch just above the tragus of the ear; it lies 1-2 mm below the spine of the helix, which can be palpated. |