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seed fern

noun

  1. any of various plants of the order Lyginopteridales (or Cycadofilicales), known only as fossils, having fernlike leaves and reproducing by means of seeds.

seed fern

noun

  1. See pteridosperm
    another name for pteridosperm

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Word History and Origins

Origin of seed fern1

First recorded in 1925–30

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inveterate

[in-vet-er-it ]

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seederseed leaf

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