eustele

[yoo-steel, yoo-stee-lee]
noun, plural eu·steles. Botany.
  1. an arrangement of the xylem and phloem in discrete strands, separated by areas of parenchymatous tissue.

Origin of eustele

First recorded in 1915–20; eu- + stele
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018