indoleacetic acid

noun in·dole·ace·tic acid \ ˌin-(ˌ)dō-lə-ˈsē-tik- \

Definition of indoleacetic acid

:a crystalline plant hormone C10H9NO2 that is a naturally occurring auxin promoting growth and rooting of plants

First Known Use of indoleacetic acid

1937


Medical Dictionary

indoleacetic acid

noun in·dole·ace·tic acid \ ˈin-ˌdōl-ə-ˌsēt-ik- \

medical Definition of indoleacetic acid

:a crystalline compound C10H9NO2 that is formed from tryptophan in plants and animals, is present in small amounts in normal urine, and acts as a growth hormone in plants called also heteroauxin

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