英语词汇“prothallium”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•li•um n., pl. -thal•li•a

pro•thal′li•al, pro•thal′lic, pro•thal•line adj. pro•thal′loid, adj.

pro•thal•lus n., pl. -thal•li [Bot.]

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	prothallium
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pro•thal•li•um (prō thal′ē əm),USA pronunciation n., pl. -thal•li•a (-thal′ē ə).USA pronunciation Botanythe gametophyte of ferns and related plants. Botanythe analogous rudimentary gametophyte of seed-bearing plants. Greek pro- pro-² + thallíon, diminutive of thallós young shoot; see -ium Neo-Latin 1855–60; pro•thal′li•al, pro•thal′lic, pro•thal•line (prō thal′ēn, -īn),USA pronunciation adj. pro•thal′loid, adj. 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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