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We found 8 dictionaries with English definitions that include the word class pteridospermopsida: Click on the first link on a line below to go directly to a page where "class pteridospermopsida" is defined. General (8 matching dictionaries) class Pteridospermopsida: Vocabulary.com [home, info] class pteridospermopsida: Dictionary.com [home, info] Class pteridospermopsida: Rhymezone [home, info] class pteridospermopsida: Free Dictionary [home, info] class pteridospermopsida: Mnemonic Dictionary [home, info] class pteridospermopsida: WordNet 1.7 Vocabulary Helper [home, info] class Pteridospermopsida: LookWAYup Translating Dictionary/Thesaurus [home, info] class Pteridospermopsida: Dictionary/thesaurus [home, info]

Quick definitions from WordNet (Class pteridospermopsida) ▸ noun:  extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies