vascular ray

vascular ray

noun Botany.
a radiate band of parenchyma in the secondary xylem extending into the secondary phloem of the stems of certain vascular plants, formed by the cambium and serving for the storage of food and the conduction of nutriments.

Origin:
1665–75

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
vascular ray
 
n
another name for medullary ray

Collins English Dictionary - Complete & Unabridged 10th Edition
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