protiodiden.

Brit.

/prəʊˈtʌɪədʌɪd/, U.S.

/proʊˈtaɪəˌdaɪd/

Forms: 1800s– protiodide, 1800s– protoiodide.

Origin: Formed within English, by compounding. Etymons: proto- comb. form, iodide n.

Etymology: < proto- comb. form + iodide n. Compare periodide n.

Chemistry. Now rare.

An iodide which contains the smallest possible proportion of iodine in relation to the other element (i.e. one in which the other element occurs in its lowest oxidation state). Cf. proto- comb. form 3a(a), periodide n.

ΚΠ

1819 W. T. Brande Man. Chem. v. 302 The protiodide [of mercury] is yellow, and the periodide red.

1833 Philos. Trans. (Royal Soc.) 123 512 Iodides of potassium, zinc and lead, protiodide of tin, [etc.].

1852 Philos. Trans. (Royal Soc.) 142 419 A small residue of a bright red colour, which proved to be protoiodide of tin.

1932 Ann. Missouri Bot. Garden 19 398 Treatment with..mercury in the form of protiodide..gave no beneficial prophylaxis.

1937 Amer. Jrnl. Surg. 35 610/2 Six injections of bismuth in oil and protoiodide of mercury by mouth.

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

单词	protiodide
释义	protiodiden. Brit. /prəʊˈtʌɪədʌɪd/, U.S. /proʊˈtaɪəˌdaɪd/ Forms: 1800s– protiodide, 1800s– protoiodide. Origin: Formed within English, by compounding. Etymons: proto- comb. form, iodide n. Etymology: < proto- comb. form + iodide n. Compare periodide n. Chemistry. Now rare. An iodide which contains the smallest possible proportion of iodine in relation to the other element (i.e. one in which the other element occurs in its lowest oxidation state). Cf. proto- comb. form 3a(a), periodide n. ΚΠ 1819 W. T. Brande Man. Chem. v. 302 The protiodide [of mercury] is yellow, and the periodide red. 1833 Philos. Trans. (Royal Soc.) 123 512 Iodides of potassium, zinc and lead, protiodide of tin, [etc.]. 1852 Philos. Trans. (Royal Soc.) 142 419 A small residue of a bright red colour, which proved to be protoiodide of tin. 1932 Ann. Missouri Bot. Garden 19 398 Treatment with..mercury in the form of protiodide..gave no beneficial prophylaxis. 1937 Amer. Jrnl. Surg. 35 610/2 Six injections of bismuth in oil and protoiodide of mercury by mouth. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1819
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