pseudo-uricadj.

Brit.

/ˌs(j)uːdə(ʊ)ˈjʊərɪk/,

/ˌs(j)uːdə(ʊ)ˈjɔːrɪk/, U.S.

/ˌsudoʊˈjʊrɪk/

Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: pseudo- comb. form, uric adj.

Etymology: < pseudo- comb. form + uric adj., after French pseudurique (in acide pseudurique pseudo-uric acid: A. Schlieper & A. Baeyer 1860, in L'Institut 28 182). Compare German Pseudoharn- (in Pseudoharnsäure pseudo-uric acid: 1861).

Chemistry.

pseudo-uric acid n. a crystalline acid, structurally similar to uric acid, obtained from uramil by reaction with a cyanate; a substituted derivative of this.Alternative name: 5-ureidobarbituric acid; C₅H₆N₄O₄.

ΚΠ

1866 W. Odling Lect. Animal Chem. 140 Pseudo-uric acid is a recent discovery.

1869 R. Bridges Fownes's Man. Elem. Chem. (ed. 10) 730 Uramile, heated with aqueous solution of potassium cyanate, is converted into pseudo-uric acid, C₅N₄H₆O₄.

1912 R. Whymper Cocoa & Chocolate xx. 212 Fischer, starting with methyl pseudo-uric acid, succeeded in synthesising the former alkaloid [sc. theobromine].

1970 Jrnl. Org. Chem. 35 812/2 Yields of pseudouric acids from potassium cyanate or isocyanates have often been moderate to low.

Derivatives

pseudo-ˈurate n. [after French pseudurate (A. Schlieper & A. Baeyer 1860, in L'Institut 28 182)] a salt or ester of pseudo-uric acid.

ΚΠ

1866 H. Watts Dict. Chem. IV. 745 The pseudo-urates are easily obtained by the action of the acid on the corresponding hydrates, carbonates, or acetates.

1948 Jrnl. Amer. Chem. Soc. 70 1241/2 Potassium pseudourate was converted to uric acid.

1992 Tetrahedron Lett. 33 6694 Potassium [5-¹³C]pseudourate was then dissolved in refluxing aqueous HCl.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	pseudo-uric
释义	pseudo-uricadj. Brit. /ˌs(j)uːdə(ʊ)ˈjʊərɪk/, /ˌs(j)uːdə(ʊ)ˈjɔːrɪk/, U.S. /ˌsudoʊˈjʊrɪk/ Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: pseudo- comb. form, uric adj. Etymology: < pseudo- comb. form + uric adj., after French pseudurique (in acide pseudurique pseudo-uric acid: A. Schlieper & A. Baeyer 1860, in L'Institut 28 182). Compare German Pseudoharn- (in Pseudoharnsäure pseudo-uric acid: 1861). Chemistry. pseudo-uric acid n. a crystalline acid, structurally similar to uric acid, obtained from uramil by reaction with a cyanate; a substituted derivative of this.Alternative name: 5-ureidobarbituric acid; C₅H₆N₄O₄. ΚΠ 1866 W. Odling Lect. Animal Chem. 140 Pseudo-uric acid is a recent discovery. 1869 R. Bridges Fownes's Man. Elem. Chem. (ed. 10) 730 Uramile, heated with aqueous solution of potassium cyanate, is converted into pseudo-uric acid, C₅N₄H₆O₄. 1912 R. Whymper Cocoa & Chocolate xx. 212 Fischer, starting with methyl pseudo-uric acid, succeeded in synthesising the former alkaloid [sc. theobromine]. 1970 Jrnl. Org. Chem. 35 812/2 Yields of pseudouric acids from potassium cyanate or isocyanates have often been moderate to low. Derivatives pseudo-ˈurate n. [after French pseudurate (A. Schlieper & A. Baeyer 1860, in L'Institut 28 182)] a salt or ester of pseudo-uric acid. ΚΠ 1866 H. Watts Dict. Chem. IV. 745 The pseudo-urates are easily obtained by the action of the acid on the corresponding hydrates, carbonates, or acetates. 1948 Jrnl. Amer. Chem. Soc. 70 1241/2 Potassium pseudourate was converted to uric acid. 1992 Tetrahedron Lett. 33 6694 Potassium [5-¹³C]pseudourate was then dissolved in refluxing aqueous HCl. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < adj.1866
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