plural noun

: a class of Pteropsida or in some classifications a subdivision of Spermatophyta comprising seed plants (as cycads and conifers) that produce naked seeds not enclosed in an ovary and in some instances have motile spermatozoids and including the subclasses Cycadophyta and Coniferophytae compare angiospermae , filicineae

Word History


New Latin, from gymn- + -spermae

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Dictionary Entries Near Gymnospermae

Cite this Entry

“Gymnospermae.” Dictionary, Merriam-Webster, Accessed 16 Jun. 2024.

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