The Collaborative International Dictionary
Exorhizal
Exorhizal \Ex`o*rhi"zal\, Exorhizous \Ex`o*rhi`zous\, a. (Bot.) Having a radicle which is not inclosed by the cotyledons or plumule; of or relating to an exorhiza.
Wiktionary
exorhizal
a. (context botany English) Having a radicle that is not enclosed by the cotyledons or plumule; of or relating to an exorhiza. alt. (context botany English) Having a radicle that is not enclosed by the cotyledons or plumule; of or relating to an exorhiza.