Dictionary.com
definitions

rhizogenic

[rahy-zoh-jen-ik]
adjective Botany.
  1. producing roots, as certain cells.
Also rhi·zog·e·nous [rahy-zoj-uh-nuh s] /raɪˈzɒdʒ ə nəs/.

Origin of rhizogenic

First recorded in 1880–85; rhizo- + -genic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for rhizogenic

rhizogenic

rhizogenetic (ˌraɪzəʊdʒəˈnɛtɪk) or rhizogenous (raɪˈzɒdʒənəs)

adjective
  1. (of cells and tissues) giving rise to roots
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