Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun class_psilopsida

1 sense of class psilopsida

Sense 1
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)
       => class -- ((biology) a taxonomic group containing one or more orders)