noun
lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots
• Syn: ↑Psilotales
• Hypernyms: ↑plant order
• Member Holonyms: ↑Psilopsida, ↑class Psilopsida, ↑Psilotatae, ↑class Psilotatae
• Member Meronyms: ↑Psilotaceae, ↑family Psilotaceae
Useful english dictionary. 2012.