indoleacetic acid
in·dole·ace·tic acid
noun \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
See First Known Use of INDOLEACETIC ACID
1937
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