medullary ray

  1. (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

First recorded in 1820–30

Words Nearby medullary ray Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for medullary ray

medullary ray

  1. 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