catchoo

Noun

catechu (countable and uncountable, plural catechus)

1. A gummy extract of any of several species of Acacieae, but especially Senegalia catechu, produced by boiling the wood of the tree in water and evaporating the resulting liquid.
   • The pale catechus are usually sweeter and more pleasant for chewing.1837, Jonathan Pereira, “Lectures on Materia Medica: Lecture LXI”, in London Medical Gazette, volume XX, page 107

   Synonyms:

   Japanese earth