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seed fern

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noun

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

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Also called pteridosperm.

Origin of seed fern

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for seed fern

seed fern

noun

another name for pteridosperm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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