quadrihydraten.

Brit.

/ˌkwɒdrᵻˈhʌɪdreɪt/, U.S.

/ˌkwɑdrəˈhaɪˌdreɪt/

Forms: 1800s quadrohydrate, 1800s– quadrihydrate.

Origin: Formed within English, by compounding. Etymons: quadri- comb. form, hydrate n.

Etymology: < quadri- comb. form + hydrate n.With the form quadrohydrate compare -o- connective.

Chemistry. rare.

A compound containing four water molecules (or, formerly, hydroxide groups) in its empirical formula. Cf. tetrahydrate n. at tetra- comb. form 2a(c)(ii).

ΚΠ

1825 T. Thomson Attempt to Establish First Princ. Chem. II. 303 Berzelius considers it as a compound of 3 atoms carbonate of magnesia and of 1 atom of quadrohydrate.

1893 Philos. Trans. 1892 (Royal Soc.) A. 183 69 (table) Quadrihydrate of nitric acid.

1959 Analyt. Chem. 31 423/1 A solution of 2.76 grams of thorium nitrate quadrihydrate in 1000 ml. of water.

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

单词	quadrihydrate
释义	quadrihydraten. Brit. /ˌkwɒdrᵻˈhʌɪdreɪt/, U.S. /ˌkwɑdrəˈhaɪˌdreɪt/ Forms: 1800s quadrohydrate, 1800s– quadrihydrate. Origin: Formed within English, by compounding. Etymons: quadri- comb. form, hydrate n. Etymology: < quadri- comb. form + hydrate n.With the form quadrohydrate compare -o- connective. Chemistry. rare. A compound containing four water molecules (or, formerly, hydroxide groups) in its empirical formula. Cf. tetrahydrate n. at tetra- comb. form 2a(c)(ii). ΚΠ 1825 T. Thomson Attempt to Establish First Princ. Chem. II. 303 Berzelius considers it as a compound of 3 atoms carbonate of magnesia and of 1 atom of quadrohydrate. 1893 Philos. Trans. 1892 (Royal Soc.) A. 183 69 (table) Quadrihydrate of nitric acid. 1959 Analyt. Chem. 31 423/1 A solution of 2.76 grams of thorium nitrate quadrihydrate in 1000 ml. of water. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1825
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