Pronunciation: (kat'i-chOO", -kyOO"), [key]
any of several astringent substances obtained from various tropical plants, esp. from the wood of two East Indian acacias, Acacia catechu and A. suma: used in medicine, dyeing, tanning, etc. Also called cashoo, cutch.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.