单词 | actinostele |
释义 | actinostelenoun ac·tin·o·stele ak-ˈti-nə-ˌstēl also ˌak-tə-(ˌ)nō-ˈstē-lē plural -s : a vascular core (as in most roots and some stems) having the xylem and phloem in alternating or radial groups within a pericycle compare stele |
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