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indolebutyric acid

[in-dohl-byoo-tir-ik, in-]
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noun Biochemistry.
  1. a white or yellowish, crystalline, water-insoluble powder, C12H13O2N, a plant hormone similar to indoleacetic acid and used for the same purposes.
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Origin of indolebutyric acid

First recorded in 1935–40; indole + butyric
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for indolebutyric acid

indolebutyric acid

noun
  1. a synthetic auxin used for stimulating plant growth and root formation. Formula: C 12 H 13 NO 2)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012