actinostele

noun

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

Word History

Etymology

actin- + stele

First Known Use

1902, in the meaning defined above

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