indoleacetic acid

[ in-dohl-uh-see-tik, -set-ik, in- ]
/ ˈɪn doʊl əˈsi tɪk, -ˈsɛt ɪk, ˌɪn- /

noun Biochemistry.

a crystalline, water-insoluble powder, C10H9NO2, a natural plant hormone, used especially for stimulating growth and root formation in plant cutting.

Nearby words

  1. indoctrinate,
  2. indoctrination,
  3. indocyanine green,
  4. indolaceturia,
  5. indole,
  6. indoleamine,
  7. indolebutyric acid,
  8. indolence,
  9. indolent,
  10. indolent bubo

Origin of indoleacetic acid

First recorded in 1885–90; indole + acetic


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for indoleacetic acid

indoleacetic acid

/ (ˌɪndəʊləˈsiːtɪk, -ˈsɛtɪk) /

noun

an auxin that causes elongation of the cells of plant stems. Formula: C 10 H 9 NO 2Abbreviation: IAA
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

Medicine definitions for indoleacetic acid

indoleacetic acid

[ ĭndō-lə-sē′tĭk ]

n.

A plant hormone that stimulates growth.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.