Extine Ex"tine (?; 104), n. [L. exter on the outside. Cf. {Intine}.] (bot.) The outer membrane of the grains of pollen of flowering plants. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • extine — /ek steen, stuyn/, n. Bot. exine. [1825 35; < L ext(imus) most outward + INE1] * * * …   Universalium

  • extine — variant of exine …   Useful english dictionary

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  • Intextine — In*tex tine, n. [Infine + extine.] (Bot.) A thin membrane existing in the pollen grains of some plants, and situated between the extine and the intine, as in {[OE]nothera}. [1913 Webster] …   The Collaborative International Dictionary of English

  • ex|ine — «EHK seen, syn», noun. = extine. (Cf. ↑extine) …   Useful english dictionary

  • Intine — In tine, n. [L. intus within. Cf. {Extine}.] (Bot.) A transparent, extensible membrane of extreme tenuity, which forms the innermost coating of grains of pollen …   The Collaborative International Dictionary of English

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  • ЭКЗИНА — (англ. exine, extine, от лат. extimus крайний, внешний), наруж. слой спородермы. Несёт защитную функцию. Благодаря осн. компоненту спорополленину, Э. обладает необычайной устойчивостью к воздействию внеш. среды (сохраняется миллионы лет в геол.… …   Биологический энциклопедический словарь

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