单词	seed fern
释义	seed fern noun : any of an order (Pteridospermales) of extinct cycadophytes with foliage like that of ferns and with naked seeds Word History First Known Use 1907, in the meaning defined above
随便看	diogenic diogenite dioicous diol diolefin diolefins diols diomate Diomede Islands Diomedea Diomedeidae diomedeidaes Diomedes dionaeae dionaeas Dione dionin dionine dionise dionysi Dionysia Dionysiac dionysiacs dionysiae Dionysian

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