indoleacetic acid
/ˈɪndəʊləˈsiːtɪk/noun
mass noun
1- Biochemistry a compound which is an acetic acid derivative of indole, especially one found as a natural growth hormone (auxin) in plants【生化】吲哚乙酸（尤指一种天然植物生长素auxin）。
1.1
- Chem. formula: C8H6(CH3COOH)N; seven isomers; auxin is indole-3-acetic acid.化学分子式：C8H6(CH3COOH)N, 7种异构体, auxin即吲哚-3-乙酸.