si·phon·o·stele (s -f n  -st l , sf-n-stl)n. Botany A type of stele in which the vascular cylinder surrounds a pith, as in the stem of the sunflower. si·phon o·stelic (-stl k) adj. |
siphonostele [ˈsaɪfənəˌstiːl]
n
(Life Sciences & Allied Applications / Botany) Botany the cylinder of conducting tissue surrounding a central core of pith in certain stems See also stele [3]
[from siphon + stele]
siphonostelic [ˌsaɪfənəˈstiːlɪk] adj
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