progymnosperm

P3R1O1G2Y4M3N1O1S1P3E1R1M3

noun

A very early form of plant that produced both wood (like trees) and spores (like ferns).

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Meanings

nounprogymnosperm (plural progymnosperms)

plural progymnosperms

  1. biologyA very early form of plant that produced both wood (like trees) and spores (like ferns).

    Pycnoxylic wood is a primitive feature of progymnosperms with regard to manoxylic wood with wide and high rays.

    1991, Transactions of the Royal Society of Edinburgh: Earth sciences, page 122

Origin

From pro- + gymnosperm.

Full word history & related roots →
Cite this entry
APA

progymnosperm. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/progymnosperm

MLA

“progymnosperm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/progymnosperm. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “progymnosperm,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/progymnosperm.

Source: progymnosperm on Wiktionary, CC BY-SA 4.0.