polysacchariden.

Brit.

/ˌpɒlɪˈsakərʌɪd/, U.S.

/ˌpɑliˈsækəˌraɪd/

Forms: 1800s– polysaccharid (now rare), 1800s– polysaccharide.

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: poly- comb. form, saccharide n.

Etymology: < poly- comb. form + saccharide n., after German Polysaccharid (1888 or earlier), probably itself after French polysaccharide (1862 or earlier).

Chemistry.

A carbohydrate such as starch, cellulose, or glycogen, in which the molecule consists of a number of monosaccharide residues or their simple derivatives linked together, usually in a chain of high molecular weight. Also: such a structure forming part of a larger molecule.

ΘΚΠ

the world > matter > chemistry > polymer chemistry > polymers (named others) > [noun] > others miscellaneous

polysulphide1849

indoline1884

polyacetylene1885

polymethylene1892

polysaccharide1892

polysaccharose1894

polyose1895

polymethacrylic acid1897

hydrol1900

polyphosphate1908

polyphenylene1921

polyacrylate1932

polyacrylonitrile1935

polyisocyanate1943

polyacrylamide1944

polysiloxane1944

polyglycolic acid1956

polynosic1959

anomalous water1966

polywater1969

1892 E. F. Smith tr. V. von Richter Org. Chem. (ed. 2) 512 It is very probable that the polysaccharides having the empirical formula C₆H₁₀O₅, really possess a much higher molecular weight, (C₆H₁₀O₅)_n.

1894 Philos. Trans. (Royal Soc.) B. 185 235 By further polymerization and dehydration, a series of polysaccharids, consisting of the dextrins and starches..and the gums, is produced.

1932 Analyst 57 374 By reducing the concentration of nitric acid, it is possible to obtain a mixture which reacts rapidly with saccharides and not with polysaccharides.

1960 New Biol. 31 72 The virulent and avirulent types [of pneumococcus] can be quickly and easily distinguished because the virulent cells are enclosed in a polysaccharide capsule that can be seen under the microscope.

1973 R. G. Krueger et al. Introd. Microbiol. xxiv. 590/2 The major antigenic components of bacteria and their products are polysaccharides of one sort or another.

2000 J. C. McAuliffe & O. Hindsgaul in M. Fukuda & O. Hindsgaul Molecular & Cellular Glycobiol. viii. 267 There are limitations..to vaccines consisting of native polysaccharides, including their lack of efficacy in children under 2 years old.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polysaccharide
释义	polysacchariden. Brit. /ˌpɒlɪˈsakərʌɪd/, U.S. /ˌpɑliˈsækəˌraɪd/ Forms: 1800s– polysaccharid (now rare), 1800s– polysaccharide. Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: poly- comb. form, saccharide n. Etymology: < poly- comb. form + saccharide n., after German Polysaccharid (1888 or earlier), probably itself after French polysaccharide (1862 or earlier). Chemistry. A carbohydrate such as starch, cellulose, or glycogen, in which the molecule consists of a number of monosaccharide residues or their simple derivatives linked together, usually in a chain of high molecular weight. Also: such a structure forming part of a larger molecule. ΘΚΠ the world > matter > chemistry > polymer chemistry > polymers (named others) > [noun] > others miscellaneous polysulphide1849 indoline1884 polyacetylene1885 polymethylene1892 polysaccharide1892 polysaccharose1894 polyose1895 polymethacrylic acid1897 hydrol1900 polyphosphate1908 polyphenylene1921 polyacrylate1932 polyacrylonitrile1935 polyisocyanate1943 polyacrylamide1944 polysiloxane1944 polyglycolic acid1956 polynosic1959 anomalous water1966 polywater1969 1892 E. F. Smith tr. V. von Richter Org. Chem. (ed. 2) 512 It is very probable that the polysaccharides having the empirical formula C₆H₁₀O₅, really possess a much higher molecular weight, (C₆H₁₀O₅)_n. 1894 Philos. Trans. (Royal Soc.) B. 185 235 By further polymerization and dehydration, a series of polysaccharids, consisting of the dextrins and starches..and the gums, is produced. 1932 Analyst 57 374 By reducing the concentration of nitric acid, it is possible to obtain a mixture which reacts rapidly with saccharides and not with polysaccharides. 1960 New Biol. 31 72 The virulent and avirulent types [of pneumococcus] can be quickly and easily distinguished because the virulent cells are enclosed in a polysaccharide capsule that can be seen under the microscope. 1973 R. G. Krueger et al. Introd. Microbiol. xxiv. 590/2 The major antigenic components of bacteria and their products are polysaccharides of one sort or another. 2000 J. C. McAuliffe & O. Hindsgaul in M. Fukuda & O. Hindsgaul Molecular & Cellular Glycobiol. viii. 267 There are limitations..to vaccines consisting of native polysaccharides, including their lack of efficacy in children under 2 years old. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1892
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