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indoleacetic acid


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A plant hormone, C10H9NO2, that stimulates growth.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. an auxin plant hormone, synthesized in leaves, that stimulates growth, especially in the presence of ethylene

from the GNU version of the Collaborative International Dictionary of English

  • n. A plant hormone (C10H9NO2) recognized as the principle growth regulator in higher plants; called also heteroauxin. Abbreviated IAA. Chemically it is 1H-indole-3-acetic acid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a plant hormone promoting elongation of stems and roots


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