prothallus

enUK

pro·thal·lus

P0615400 (prō-thăl′əs) or pro·thal·li·um (-thăl′ē-əm)n. pl. pro·thal·li (-thăl′ī) or pro·thal·li·a (-thăl′ē-ə) A small, flat, delicate structure produced by a germinating spore and bearing sex organs. It is the gametophyte of ferns and some other plants.

[New Latin : pro- + Greek thallos, shoot (from thallein, to sprout).]

pro·thal′li·al (-lē-əl) adj.

prothallus

(prəʊˈθæləs) or

prothallium

n, pl -li (-laɪ) or -lia (-lɪə) (Botany) botany 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[C19: from New Latin, from pro- before + Greek thallos a young shoot] proˈthallic, proˈthallial adj

pro•thal•li•um

(proʊˈθæl i əm)

n., pl. -thal•li•a (-ˈθæl i ə) the gametophyte of ferns and related plants. [1855–60; < Greek pro- pro-² + thallíon, diminutive of thallós young shoot; see -ium²] pro•thal′li•al, pro•thal′lic, pro•thal′line (-ˈθæl in, -aɪn) adj. pro•thal′loid, adj.

单词	prothallus
释义	prothallus enUK pro·thal·lus P0615400 (prō-thăl′əs) or pro·thal·li·um (-thăl′ē-əm)n. pl. pro·thal·li (-thăl′ī) or pro·thal·li·a (-thăl′ē-ə) A small, flat, delicate structure produced by a germinating spore and bearing sex organs. It is the gametophyte of ferns and some other plants. [New Latin : pro- + Greek thallos, shoot (from thallein, to sprout).] pro·thal′li·al (-lē-əl) adj. prothallus (prəʊˈθæləs) or prothallium n, pl -li (-laɪ) or -lia (-lɪə) (Botany) botany 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[C19: from New Latin, from pro- before + Greek thallos a young shoot] proˈthallic, proˈthallial adj pro•thal•li•um (proʊˈθæl i əm) n., pl. -thal•li•a (-ˈθæl i ə) the gametophyte of ferns and related plants. [1855–60; < Greek pro- pro-² + thallíon, diminutive of thallós young shoot; see -ium²] pro•thal′li•al, pro•thal′lic, pro•thal′line (-ˈθæl in, -aɪn) adj. pro•thal′loid, adj. EncyclopediaSeeProthallium prothallus enUK prothallus a small thalloid structure produced by the germination of the spore in ferns and related plants, which bears the ARCHEGONIA and ANTHERIDIA and is the GAMETOPHYTE generation.
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