indolebutyric acid: Meaning and Definition of

in'dole•bu•tyr'ic ac'id

Pronunciation: (in'dōl-by-tir'ik, in"-), [key]
— Biochem. Biochem.
  1. a white or yellowish, crystalline, water-insoluble powder, CHON, a plant hormone similar to indoleacetic acid and used for the same purposes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.