Catechu n. (Chem.) A dry, brown, astringent extract, obtained by decoction and evaporation from the Acacia catechu, and several other plants growing in India. It contains a large portion of tannin or tannic acid, and is used in medicine and in the arts. It is also known by the names terra japonica, cutch, gambier, etc.
... Mirzapur and Chota Nagpur. There is some reason for supposing that they are an occupational offshoot of the Kols and Cheros, who have become a distinct group through taking to the manufacture of edible catechu from the wood of the khair ... — The Tribes and Castes of the Central Provinces of India--Volume I (of IV) • R.V. Russell
... Boiled flaxseed is often the best diet or addition to the wholesome dry food, and, by way of medicine, doses of 2 drams each of sulphate of iron and iodid of potassium may be given twice daily. In obstinate cases 2 drams ergot of rye or of catechu may be added. ... — Special Report on Diseases of Cattle • U.S. Department of Agriculture
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