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首頁英語詞典notochordnotochord英英釋意

notochord

英 ['n??t?(?)k??d] 美['not?,k?rd]
  • n. [胚] 脊索

英英釋意

1. a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates