英语词汇“medullosan”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

medullosan

/ˌmɛdəˈləʊsn/

Botany

adjective

Of, relating to, or belonging to the group of extinct seed-bearing ferns (pteridosperms) including the genus Medullosa, known from Carboniferous and Permian fossils, whose stems have large, widely-spaced petioles and branched vascular cylinders.

noun

A seed-bearing fern of the extinct genus Medullosa or the group to which it belongs.

Origin

Early 20th century; earliest use found in Philosophical Transactions of the Royal Society of London. From Medullosa + -an.

单词	medullosan
释义	medullosan /ˌmɛdəˈləʊsn/ Botany adjective Of, relating to, or belonging to the group of extinct seed-bearing ferns (pteridosperms) including the genus Medullosa, known from Carboniferous and Permian fossils, whose stems have large, widely-spaced petioles and branched vascular cylinders. noun A seed-bearing fern of the extinct genus Medullosa or the group to which it belongs. Origin Early 20th century; earliest use found in Philosophical Transactions of the Royal Society of London. From Medullosa + -an.
随便看	polycultural polyculture polycyclic polycystic polycystic ovary syndrome polycystin polycystine polycythaemia polycythaemic polycythemia polydactyl polydactylism polydactylous polydactyly polydaemonism polydaemonistic polydaimonism polydemonism polydemonistic polydentate polydeoxynucleotide polydeoxyribonucleotide polydesoxyribonucleotide Polydeuces polydiene