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
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
Seen and Heard
What made you want to look up indoleacetic acid? Please tell us where you read or heard it (including the quote, if possible).