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单词 citrate
释义

citraten.

Brit. /ˈsɪtreɪt/, U.S. /ˈsɪˌtreɪt/
Forms: 1700s–1800s citrat, 1700s– citrate.
Origin: A borrowing from French. Etymon: French citrate.
Etymology: < French citrate ( L.-B. Guyton de Morveau Mémoire sur les dénominations chimiques (1782)) < citr- (in citrique citric adj.) + -ate -ate suffix1. Compare earlier citrated adj. and the post-classical Latin adjective cited at that entry.
Chemistry.
A salt or ester, or an anion, of citric acid.
ΘΚΠ
the world > matter > chemistry > chemical substances > esters > [noun] > salts, esters, or anions > others
citrate1788
pyrophosphate1827
paraphosphate1837
thioglycolate1877
isatogenate1882
orotate1905
hydrazoate1910
octoate1911
octanoate1945
1788 W. Nicholson tr. A.-F. de Fourcroy Elements Nat. Hist. & Chem. I. p. lxxxix Calcareous citrate is formed, which is insoluble in boiling water.
1806 R. Patterson Adams's Lect. Nat. & Exper. Philos. (rev. ed.) I. App. 547 Citrats—acted upon by the stronger mineral acids.
1815 W. Henry Elements Exper. Chem. (ed. 7) II. i. xx. 202 Citrate of soda is a very soluble salt.
1886 R. C. Haldane Subtrop. Cultiv. & Climates 55 Citric Acid.—Is obtained from lemon-juice by saturating it with chalk or whiting till effervescence ceases, by which citrate of lime is formed.
1910 J. A. Murray Soils & Manures viii. 220 The reverted phosphate..is largely soluble in a neutral solution of ammonium citrate.
1948 L. E. H. Whitby Nurses' Handbk. Hygiene (ed. 8) vi. 149 Organic salts, such as tartrates and citrates, are found in fresh vegetables.
1985 Cambr. Encycl. Life Sci. i. 26/2 Citrate inhibits glycolysis at its rate-determining step, the reaction catalysed by the enzyme phosphofructokinase.
2006 Zest Jan. 43/3 (table) Check that supplements contain calcium citrate, which is better absorbed than calcium carbonate.
This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

citratev.

Brit. /sᵻˈtreɪt/, U.S. /ˈsɪˌtreɪt/
Origin: Formed within English, by derivation. Etymons: citrate n., citric adj., -ate suffix3.
Etymology: < citr- (in citrate n., citric adj.) + -ate suffix3. Compare earlier citrated adj.
Chiefly Medicine and Physiology.
transitive and intransitive. To treat (a specimen of blood or other fluid) with a citrate, typically sodium citrate. Cf. citrated adj.
ΘΚΠ
the world > health and disease > healing > medical treatment > treatment by medicine or drug > treat with drugs [verb (transitive)] > treat with specific drugs or medicines
tartar1647
blue-pill1824
mercurialize1825
opium1825
treacle1839
tartar-emeticize1844
quinine1858
quininize1860
cinchonize1863
veratrize1891
oxalate1894
tuberculinize1897
citrate1903
strychninize1934
juice1973
1903 Brit. Med. Jrnl. 30 May 1254/2 Larger quantities of blood may be examined by citrating and employing the centrifuge.
1921 Lancet 1 Jan. 22/2 A batch of broth was taken and divided into two parts, one being kept as the control, the other portions of the remainder being citrated by the addition of..citrate of soda.
1946 Nature 6 July 24/1 The fluid was aspirated by means of a hypodermic syringe from the uterine swellings..and was citrated.
2004 Jrnl. Infectious Dis. 189 447 We endeavored to secure cultures of the organism causing dengue by citrating blood from dengue.
This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).
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n.1788v.1903
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