plural noun
Pte·​rop·​si·​da | \ -sədə \

Definition of Pteropsida

: a subdivision of Tracheophyta comprising vascular plants (as the ferns and flowering plants) with well-developed and typically large leaves, leaf gaps usually present in the primary vascular cylinder, and sporangia abaxial on normal or modified leaves and including the classes Filicineae, Gymnospermae, and Angiospermae — compare lycopsida , psilopsida , sphenopsida

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History and Etymology for Pteropsida

New Latin, from Pteropsis, genus of ferns (from pter- + -opsis) + -ida

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Cite this Entry

“Pteropsida.” Dictionary, Merriam-Webster, Accessed 15 Aug. 2020.

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