- (of a bundle) having the xylem lined with phloem on both its inner and outer faces.
Origin of bicollateral
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- botany (of a vascular bundle) having two phloem groups to the inside and outside, respectively, of the xylem
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