HyperDic

English > 1 sense of the expression *indoleacetic acid*:
NOUN	substance	indoleacetic acid, IAA	a plant hormone promoting elongation of stems and roots

English > *indoleacetic acid*: 1 sense > noun 1, substance
Meaning	A plant hormone promoting elongation of stems and roots.
Synonym	IAA
Broader	auxin	A plant hormone that promotes root formation and bud growth