Definition of indoleacetic acid in English:

indoleacetic acid

noun

Biochemistry
  • [mass noun] A compound which is an acetic acid derivative of indole, especially one found as a natural growth hormone (auxin) in plants.

    • ‘In addition, various combinations of the following hormones were also added: naphthylacetic acid, 3 - indoleacetic acid, with 6-benzylaminopurine or kinetin.’
    • ‘Here we show that the plant hormone indoleacetic acid (IAA) induces adhesion and filamentation of Saccharomyces cerevisiae.’
    • ‘The plant hormone auxin (indoleacetic acid) plays a role in specifying the pattern of root cells, and mutations affecting its localization lead to root defects.’
    • ‘A bacterial substance known as indoleacetic acid may play a part in sprout inhibition.’
    • ‘One was identified as indoleacetamide and the second, indoleacetic acid.’

Pronunciation:

indoleacetic acid

/ˌɪndəʊləˈsiːtɪk/