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

pro•thal•lus n., pl. -thal•li [Bot.]

Collins Concise English Dictionary © HarperCollins Publishers::

prothallus /prəʊˈθæləs/, prothallium /prəʊˈθælɪəm/ n ( pl -li / -laɪ/, -lia / -lɪə/)

the small flat free-living gametophyte that bears the reproductive organs of ferns, horsetails, and club mosses. It is either a green disc on the soil surface or it is colourless and subterranean

Etymology: 19th Century: from New Latin, from pro- before + Greek thallus a young shoot

单词	prothallus
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pro•thal•lus (prō thal′əs),USA pronunciation n., pl. -thal•li (-thal′ī).USA pronunciation [Bot.] Botanyprothallium. Neo-Latin; see pro-, thallus 1850–55 Collins Concise English Dictionary © HarperCollins Publishers:: prothallus /prəʊˈθæləs/, prothallium /prəʊˈθælɪəm/ n ( pl -li / -laɪ/, -lia / -lɪə/) the small flat free-living gametophyte that bears the reproductive organs of ferns, horsetails, and club mosses. It is either a green disc on the soil surface or it is colourless and subterranean Etymology: 19th Century: from New Latin, from pro- before + Greek thallus a young shoot
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