para·chord·al /-ˈkɔrdḷ/ 形容詞
  脊索旁的
  Par·a·chor·dal a.  Anat. Situated on either side of the notochord; -- applied especially to the cartilaginous rudiments of the skull on each side of the anterior part of the notochord. -- n. A parachordal cartilage.
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