Cat"e*chu (?), n. [See Cashoo.]
(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. Ure. Dunglison.
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