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  1. tracheid

    • IPA[ˈtreɪkɪɪd]

    英式

    • n.
      a type of water-conducting cell in the xylem which lacks perforations in the cell wall.
    • noun: tracheid, plural noun: tracheids

    • 更多解釋
    • IPA[ˈtrākēid]

    美式

    • n.
      a type of water-conducting cell in the xylem which lacks perforations in the cell wall.

    Oxford American Dictionary