'Catechin' definitions:
Definition of 'catechin'
(from WordNet)
noun
A tannic acid that is extracted from black catechu as a white crystalline substance
Definition of 'Catechin'
From: GCIDE
- Catechin \Cat"e*chin\, n. (Chem.) One of the tannic acids (C15H14O6), extracted from catechu as a white, crystalline substance; -- called also catechuic acid, catechinic acid, cyanidol, and catechuin. It is a flavonoid found generally in higher woody plants, and is used in dyeing and tanning. [1913 Webster +PJC]