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beta-indoleacetic acid

American  
[bey-tuh-in-dohl-uh-see-tik, -uh-set-ik, bee-] / ˈbeɪ təˌɪn doʊl əˈsi tɪk, -əˈsɛt ɪk, ˈbi- /

noun

Biochemistry.
  1. indoleacetic acid.