Search Result：psilopsida
psilopsida 
(TTS Sound)
(TTS Sound)Overview of noun psilopsida
The noun psilopsida has 1 sense
- Psilopsida, class Psilopsida, Psilotatae, class Psilotatae -- (whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs)