† querceticadj.

Origin: Formed within English, by derivation; apparently modelled on a German lexical item. Etymons: quercetin n., -ic suffix.

Etymology: < quercet- (in quercetin n.) + -ic suffix, apparently after German Quercetinsäure (H. Hlasiwetz 1859, in Ann. der Chemie u. Pharmacie 112 99). N.E.D. (1902) gives the pronunciation as (kwə̄·ɹsĭtik) /ˈkwɜːsɪtɪk/.

Chemistry. Obsolete.

quercetic acid n. an acid obtained by heating quercetin with an alkali (not identified).

ΚΠ

1864 H. Watts tr. L. Gmelin Hand-bk. Chem. XVI. 488 The crystals of quercetic acid are converted by prolonged drying at 120°–130°, into anhydrous quercetic acid.

1868 H. Watts Dict. Chem. V. 5 Quercetin heated with potash yields quercetic acid and other products.

1893 T. E. Thorpe Dict. Appl. Chem. III. 324 If the melting is continued longer than necessary to obtain quercetic acid, then quercimeric acid is obtained.

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

单词	quercetic
释义	† querceticadj. Origin: Formed within English, by derivation; apparently modelled on a German lexical item. Etymons: quercetin n., -ic suffix. Etymology: < quercet- (in quercetin n.) + -ic suffix, apparently after German Quercetinsäure (H. Hlasiwetz 1859, in Ann. der Chemie u. Pharmacie 112 99). N.E.D. (1902) gives the pronunciation as (kwə̄·ɹsĭtik) /ˈkwɜːsɪtɪk/. Chemistry. Obsolete. quercetic acid n. an acid obtained by heating quercetin with an alkali (not identified). ΚΠ 1864 H. Watts tr. L. Gmelin Hand-bk. Chem. XVI. 488 The crystals of quercetic acid are converted by prolonged drying at 120°–130°, into anhydrous quercetic acid. 1868 H. Watts Dict. Chem. V. 5 Quercetin heated with potash yields quercetic acid and other products. 1893 T. E. Thorpe Dict. Appl. Chem. III. 324 If the melting is continued longer than necessary to obtain quercetic acid, then quercimeric acid is obtained. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online December 2020). < adj.1864
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