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1. Oxford Dictionary

   siphonostele

   • IPA[ˈsʌɪfənə(ʊ)stiːl]

   英式

   • n.
     a stele consisting of a core of pith surrounded by concentric layers of xylem and phloem.

   • noun: siphonostele, plural noun: siphonosteles

2. • 更多解釋

   siphonostele

   • IPA[sīˈfänəˌstēl]

   美式

   • n.
     a stele consisting of a core of pith surrounded by concentric layers of xylem and phloem.

   Oxford American Dictionary