† pyrogalleinn.

Forms: 1800s pyrogallein, 1800s pyrogalleine.

Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: pyrogallic adj., -ein suffix.

Etymology: < pyrogall- (in pyrogallic adj.) + -ein suffix, after French pyrogalléine (A. Rösing 1857, in Comptes rendus de l'Acad. des Sci. de Paris 44 1152). Compare German Pyrogallein (A. Rösing 1857, in a translation of the French paper). Compare gallein n. Compare also pyrogallin n.

Obsolete. rare.

A substance produced by the oxidation of an ammoniacal solution of pyrogallol.

ΚΠ

1857 Chem. Gaz. 1 Aug. 286 In this case the brown, nitrogenous product might be called pyrogalleine [Fr. pyrogalléine] or galleine.

1866 H. Watts Dict. Chem. IV. 758 Pyrogalleïn, an uncrystallisable product, formed by the action of ammonia on pyrogallic acid... It forms brown precipitates with many metallic salts.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online December 2020).

单词	pyrogallein
释义	† pyrogalleinn. Forms: 1800s pyrogallein, 1800s pyrogalleine. Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: pyrogallic adj., -ein suffix. Etymology: < pyrogall- (in pyrogallic adj.) + -ein suffix, after French pyrogalléine (A. Rösing 1857, in Comptes rendus de l'Acad. des Sci. de Paris 44 1152). Compare German Pyrogallein (A. Rösing 1857, in a translation of the French paper). Compare gallein n. Compare also pyrogallin n. Obsolete. rare. A substance produced by the oxidation of an ammoniacal solution of pyrogallol. ΚΠ 1857 Chem. Gaz. 1 Aug. 286 In this case the brown, nitrogenous product might be called pyrogalleine [Fr. pyrogalléine] or galleine. 1866 H. Watts Dict. Chem. IV. 758 Pyrogalleïn, an uncrystallisable product, formed by the action of ammonia on pyrogallic acid... It forms brown precipitates with many metallic salts. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online December 2020). < n.1857
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