Crossword clues for pteridosperm
Wiktionary
pteridosperm
n. Any of various extinct gymnosperms, of the division ''Pteridospermatophyta'', resembling ferns, but producing seeds instead of spores
WordNet
pteridosperm
n. an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae) [syn: seed fern]