monoacidadj.n.

Brit.

/ˈmɒnəʊˌasᵻd/, U.S.

/ˌmɑnoʊˈæsəd/

Forms: 1800s– monacid, 1800s– monoacid.

Origin: Formed within English, by compounding. Etymons: mono- comb. form, acid adj.

Etymology: < mono- comb. form + acid adj. Compare polyacid adj., biacid adj., diacid adj.

Chemistry.

A. adj.

Of a base, alcohol, etc.: having one replaceable hydroxyl group or hydroxide ion in the molecule; able to react with one molecule of a monobasic acid.

ΚΠ

1857 A. W. Hofmann in Proc. Royal Soc. 8 514 Propylene, a homologue of olefiant gas, is susceptible of furnishing a mono-acid alcohol.

1857 A. W. Hofmann in Philos. Trans. (Royal Soc.) 9 231 The new base.., like many other poly-ammonias, is monoacid.

1859 A. W. Hofmann in Proc. Royal Soc. 9 279 The bromide C₄ H₃ Br..might be considered as the hydrobromic ether of a monacid alcohol, C₄ H₂ O₂.

1863 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 9) 494 The mono-acid ethers.

1896 I. Remsen Introd. Study Compounds of Carbon x. 155 Hydroxy-acids..may be regarded either as monobasic acids into which one alcoholic hydroxyl has been introduced, or as monacid alcohols into which one carboxyl has been introduced.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xiii. 307 Guanidine crystallizes well..and is a sufficiently strong monoacid base to absorb carbon dioxide.

1955 B. C. L. Kemp Elem. Org. Chem. (new ed.) xxv. 333 If the amine is a ‘mon-acid’ base, we see that ^{Weight of double-salt}/ _{Weight of platinum} = ^{Molecular Weight of double-salt}/ ₁₉₅.

1993 Jrnl. Lipid Res. 34 2091 We used monoacid triacylglycerols of various acyl-chain lengths.

B. n.

1. An acid with one replaceable hydrogen atom; a monobasic acid.

ΚΠ

1914 Science 27 Mar. 447/1 The other mono acids which we examined..produce entirely negative dyes.

1972 Biochimica et Biophysica Acta 270 463 (title) Action of rat pancreatic juice and of purified pig pancreatic lipase upon the esters of short-chain aliphatic monoacids and long-chain primary monoalcohols.

1992 Pharmaceut. Res. 9 1076 CRF-187 hydrolyzes by parallel consecutive pathways forming two monoacids with one ring opened and, subsequently, the diacid with both rings hydrolyzed.

2. A monoacid compound. rare.Apparently only attested in dictionaries or glossaries.

ΚΠ

1930 I. W. D. Hackh Chem. Dict. (ed. 3) 547/1 Monoacid, any base or alcohol having one hydroxyl group which can replace one hydrogen atom of an acid.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monoacid
释义	monoacidadj.n. Brit. /ˈmɒnəʊˌasᵻd/, U.S. /ˌmɑnoʊˈæsəd/ Forms: 1800s– monacid, 1800s– monoacid. Origin: Formed within English, by compounding. Etymons: mono- comb. form, acid adj. Etymology: < mono- comb. form + acid adj. Compare polyacid adj., biacid adj., diacid adj. Chemistry. A. adj. Of a base, alcohol, etc.: having one replaceable hydroxyl group or hydroxide ion in the molecule; able to react with one molecule of a monobasic acid. ΚΠ 1857 A. W. Hofmann in Proc. Royal Soc. 8 514 Propylene, a homologue of olefiant gas, is susceptible of furnishing a mono-acid alcohol. 1857 A. W. Hofmann in Philos. Trans. (Royal Soc.) 9 231 The new base.., like many other poly-ammonias, is monoacid. 1859 A. W. Hofmann in Proc. Royal Soc. 9 279 The bromide C₄ H₃ Br..might be considered as the hydrobromic ether of a monacid alcohol, C₄ H₂ O₂. 1863 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 9) 494 The mono-acid ethers. 1896 I. Remsen Introd. Study Compounds of Carbon x. 155 Hydroxy-acids..may be regarded either as monobasic acids into which one alcoholic hydroxyl has been introduced, or as monacid alcohols into which one carboxyl has been introduced. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xiii. 307 Guanidine crystallizes well..and is a sufficiently strong monoacid base to absorb carbon dioxide. 1955 B. C. L. Kemp Elem. Org. Chem. (new ed.) xxv. 333 If the amine is a ‘mon-acid’ base, we see that ^{Weight of double-salt}/ _{Weight of platinum} = ^{Molecular Weight of double-salt}/ ₁₉₅. 1993 Jrnl. Lipid Res. 34 2091 We used monoacid triacylglycerols of various acyl-chain lengths. B. n. 1. An acid with one replaceable hydrogen atom; a monobasic acid. ΚΠ 1914 Science 27 Mar. 447/1 The other mono acids which we examined..produce entirely negative dyes. 1972 Biochimica et Biophysica Acta 270 463 (title) Action of rat pancreatic juice and of purified pig pancreatic lipase upon the esters of short-chain aliphatic monoacids and long-chain primary monoalcohols. 1992 Pharmaceut. Res. 9 1076 CRF-187 hydrolyzes by parallel consecutive pathways forming two monoacids with one ring opened and, subsequently, the diacid with both rings hydrolyzed. 2. A monoacid compound. rare.Apparently only attested in dictionaries or glossaries. ΚΠ 1930 I. W. D. Hackh Chem. Dict. (ed. 3) 547/1 Monoacid, any base or alcohol having one hydroxyl group which can replace one hydrogen atom of an acid. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < adj.n.1857
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