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catechu

American  
[kat-i-choo, -kyoo] / ˈkæt ɪˌtʃu, -ˌkju /

noun

  1. any of several astringent substances obtained from various tropical plants, especially from the wood of two East Indian acacias, Acacia catechu and A. suma: used in medicine, dyeing, tanning, etc.


catechu British  
/ ˈkætɪˌtʃuː /

noun

  1. a water-soluble astringent resinous substance obtained from any of certain tropical plants, esp the leguminous tree Acacia catechu of S Asia, and used in medicine, tanning, and dyeing See also gambier

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of catechu

1670–80; < New Latin < Portuguese; perhaps a conflation of Marathi kāt catechu and kāccu, with same sense, alleged to be < Malayalam; cashoo, cutch perhaps < Malay kacu < Malayalam, or a cognate Dravidian word

Example Sentences

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See Examples For:

The actions and uses of the two are similar, but black catechu is the more powerful.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" by Various

Apply this to the wood, and when dry treat with a solution of bichromate of potash in the same proportion as with the catechu.

From Mission Furniture How to Make It, Part 2 by H. H. (Henry Haven) Windsor

Another beautiful tree which is found in this lower part is the Acacia catechu, known in Northern India as the Khair tree, and found all about the foothills of the Himalaya.

From The Heart of Nature or, The Quest for Natural Beauty by Sir Francis Edward Younghusband

A catechu bath is now prepared, in which the silk is entered and worked for an hour, and then allowed to steep over night.

From Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades by William H. (William Henry) Dooley

All the operations thus far have had for their object the weighting of the silk, although the blueing and the catechu baths have some influence on the finished result.

From Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades by William H. (William Henry) Dooley

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