catechinn.

Forms: 1800s– catechin, 1800s– catechine.

Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: catechu n., -in suffix¹ .

Etymology: < catechu n. + -in suffix¹ , after German Katechin (T. F. L. Nees von Esenbeck 1832, in Bucheners Repertorium 43 iii. i. 338; now usually Catechin).With the form catechine compare -ine suffix⁵. Previous versions of the OED give the stress as: ˈcatechin.

Chemistry.

A substance obtained from catechu, etc., after the removal of the tannin; a white powder composed of very small silky needles.

ΚΠ

1853 Pharm. Jrnl. & Trans. 13 79 He has detected catechine in kino.

1876 J. Harley Royle's Man. Materia Med. (ed. 6) 641 The insoluble portion is a mass of acicular crystals, catechin or catechuic acid.

This entry has not yet been fully updated (first published 1889; most recently modified version published online December 2020).

单词	catechin
释义	catechinn. Forms: 1800s– catechin, 1800s– catechine. Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: catechu n., -in suffix¹ . Etymology: < catechu n. + -in suffix¹ , after German Katechin (T. F. L. Nees von Esenbeck 1832, in Bucheners Repertorium 43 iii. i. 338; now usually Catechin).With the form catechine compare -ine suffix⁵. Previous versions of the OED give the stress as: ˈcatechin. Chemistry. A substance obtained from catechu, etc., after the removal of the tannin; a white powder composed of very small silky needles. ΚΠ 1853 Pharm. Jrnl. & Trans. 13 79 He has detected catechine in kino. 1876 J. Harley Royle's Man. Materia Med. (ed. 6) 641 The insoluble portion is a mass of acicular crystals, catechin or catechuic acid. This entry has not yet been fully updated (first published 1889; most recently modified version published online December 2020). < n.1853
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