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单词 Medullosa
释义

Definition of Medullosa in English:

Medullosa

noun ˌmɛdəˈləʊsə
Botany
  • A genus (or form genus) of fossil plant stem found in Carboniferous and Permian deposits; the extinct seed-bearing tree fern (pteridosperm) from which such remains are derived.

Origin

Late 19th century; earliest use found in American Naturalist. From scientific Latin Medullosa from classical Latin medulla + -ōsa, feminine of -ōsus.

Definition of Medullosa in US English:

Medullosa

nounˌmɛdəˈləʊsə
Botany
  • A genus (or form genus) of fossil plant stem found in Carboniferous and Permian deposits; the extinct seed-bearing tree fern (pteridosperm) from which such remains are derived.

Origin

Late 19th century; earliest use found in American Naturalist. From scientific Latin Medullosa from classical Latin medulla + -ōsa, feminine of -ōsus.

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更新时间:2025/6/19 18:41:02