noun Etymology: International Scientific Vocabulary, from Greek auxein to increase — more at eke Date: 1934 1. any of various usually acidic organic substances that promote cell elongation in plant shoots and usually regulate other growth processes (as root initiation): as a. indoleacetic acid b. any of various synthetic substances (as 2,4-D) resembling indoleacetic acid in activity and used especially in research and agriculture 2. plant hormoneauxinic adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • auxin — aux in n. 1. a substance which, in small concentrations, promotes root formation, bud growth, or certain other processes such as fruit ripening or leaf drop in plants. [WordNet 1.5 +PJC] …   The Collaborative International Dictionary of English

  • auxin — auxin. См. ауксин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • auxin — (n.) plant growth hormone, 1934, from German (1931), from Gk. auxein to increase (see AUGMENT (Cf. augment)) + chemical suffix IN (Cf. in) (2) …   Etymology dictionary

  • auxin — [ôk′sin] n. [< Gr auxein, to increase (see WAX2) + IN1] a plant hormone, esp. indoleacetic acid, produced in the fruits, seeds, leaves, or stem tips, to promote longitudinal growth and to control bud growth, root formation, leaf abscission,… …   English World dictionary

  • Auxin — Auxins are a class of plant growth substance (often called phytohormone or plant hormone). Auxins play an essential role in coordination of many growth and behavioral processes in the plant life cycle.OverviewAuxins derive their name from the… …   Wikipedia

  • Auxin — Chemische Struktur von Indol 3 essigsäure, dem wichtigsten Auxin Gesunde Arabidops …   Deutsch Wikipedia

  • auxin — auxinic, adj. /awk sin/, n. Biochem. a class of substances that in minute amounts regulate or modify the growth of plants, esp. root formation, bud growth, and fruit and leaf drop. [1930 35; AUX + IN2] * * * Any of a group of hormones that… …   Universalium

  • Auxin — Au|xin 〈n. 11〉 Pflanzenwuchsstoff [zu grch. auxein „wachsen“] * * * Au|xin [griech. aúxe̅ = Zuwachs, Vergrößerung; ↑ in (3)], das; s, e: Sammelbez. für versch. Verb. mit Pflanzenwuchsstoffeigenschaften, z. B. ↑ Indolessigsäure (Auxin im engeren… …   Universal-Lexikon

  • Auxin — Au|xin 〈n.; Gen.: s, Pl.: e; Bot.〉 Pflanzenwuchsstoff [Etym.: <grch. auxin »wachsen«] …   Lexikalische Deutsches Wörterbuch

  • auxin — auksinas statusas T sritis chemija apibrėžtis Augalų augimą reguliuojanti medžiaga, fitohormonas. atitikmenys: angl. auxin rus. ауксин …   Chemijos terminų aiškinamasis žodynas

  • auxin — auksinas statusas T sritis augalininkystė apibrėžtis Augimą skatinantis paties augalo endogeninis hormonas arba cheminiu būdu sintetinamas augalų augimo reguliatorius. atitikmenys: angl. auxin rus. ауксин …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

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