Noun: pteridosperm 'te-ri-du,spurm or tu'ri-du,spurm
- An extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)
"Fossil evidence of pteridosperms has been found in Carboniferous rock formations";
- seed fern
Derived forms: pteridosperms
Type of: gymnosperm
Encyclopedia: Pteridosperm