| 释义 |
progymnosperm
Thesaurus| Noun | 1. | progymnosperm - an ancestral fossil type from which modern gymnosperms are thought to have derivedgymnosperm - plants of the class Gymnospermae having seeds not enclosed in an ovary |
EncyclopediaSeeArchaeopterisprogymnosperm
Words related to progymnospermnoun an ancestral fossil type from which modern gymnosperms are thought to have derivedRelated Words |