pteridosperm means any of various extinct gymnosperms, of the division Pteridospermatophyta, resembling ferns, but producing seeds instead of spores. Lexicurio rates it Sui generis — a strength score of 85 out of 100.
noun
- Any of various extinct gymnosperms, of the division Pteridospermatophyta, resembling ferns, but producing seeds instead of spores