medullary ray
nounBotany.
(in the stems of woody plants) one of the vertical bands or plates of unspecialized tissue that radiate between the pith and the bark.
Origin of medullary ray
1First recorded in 1820–30
- Also called pith ray.
Words Nearby medullary ray
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for medullary ray
medullary ray
noun
any of the sheets of conducting tissue that run radially through the vascular tissue of some higher plants
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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