ˈcatechin Chem.
A substance obtained from catechu, etc., after the removal of the tannin; a white powder composed of very small silky needles.
| 1853 Pharm. Jrnl. XIII. 79 He has detected catechine in kino. 1876 Harley Mat. Med. 641 The insoluble portion is a mass of acicular crystals, catechin or catechuic acid. |