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.
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Origin:
1665–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Vascular ray is always a great word to know.
So is naked seed. Does it mean:
ovules which are unenclosed, forming on cones or stalks
male reproductive structure which produces gametes in ferns, mosses, fungi and algae
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Collins
World English Dictionary
vascular ray
 
—n
another name for medullary ray

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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