pteridosperm   (TTS Sound)

The pteridosperm has 1 Senses.

• pteridosperm, seed fern
• an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)
• 絶滅した種子をつけるソテツシダ目（またはシダ種子の仲間）のシダのような植物