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subdivision pteropsida is a noun meaning "used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and Angiospermae". It carries one recorded sense.
used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and Angiospermae
Definitions, synonyms and semantic relations for subdivision pteropsida come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.