manno-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Some degree of stress is always maintained on the first syllable. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. mannoheptose Brit.

/ˌmanə(ʊ)ˈhɛptəʊz/,

/ˌmanə(ʊ)ˈhɛptəʊs/, U.S.

/ˌmænoʊˈhɛpˌtoʊs/,

/ˌmænoʊˈhɛpˌtoʊz/.

Origin: Formed within English, by compounding. Etymons: mannose n., -o- connective.

Etymology: < mann- (in mannose n.) + -o- connective.Formations are found from the late 19th cent.

Chemistry and Biochemistry.

Forming the names of compounds and substances derived from or containing mannose, as mannoglycerate, mannoheptose, mannoheptulose, mannoketoheptose, manno-octose, manno-octulosonate; mannosaccharic adj. See also mannoprotein n.

ΚΠ

1888 Jrnl. Chem. Soc. 54 934 Mannosephenylhydrazone, C₁₂H₁₈N₂O₅, is prepared by heating 200 grams of mannitol.]

1890 Jrnl. Chem. Soc. 58 i. 598 The compounds obtained from mannose receive the names mannoheptose, mannoctose, mannoheptitol, mannoctonic acid, etc.

1911 Encycl. Brit. XXV. 893/2 Cyclic configuration especially leads to the highest values known: the lactic acid with 3° leads to a lactone with −86°,..mannosaccharic acid..to a dilactone..with 202°.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xlvii. 721 With d-mannose only one d-mannoheptose can be isolated. Similarly the d-mannoheptose yields only one mannooctose, and this only one nonose.

1938 Thorpe's Dict. Appl. Chem. (ed. 4) II. 286/2 The natural ketoheptoses are d-mannoketoheptose present in the Avocado pear; [etc.].

1953 G. E. Fogg Metabolism of Algae vi. 93 In many species of Ceramiales, Gigartinales and Cryptonemiales, sodium mannoglycerate is more abundant than floridoside.

1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) II. lxxiii. 1793/1 Interference with glucose metabolism in the islet tissue by mannoheptulose or 2-deoxyglucose inhibits insulin secretion.

1992 C. A. Smith & E. J. Wood Biosynthesis iv. 73 Both N-acetylneuraminate (sialate) and 3-deoxy-D-mannooctulosonate (KDO), a key sugar in the lipid A region of lipopolysaccharides, are donated from CMP derivatives.

This is a new entry (OED Third Edition, September 2000; most recently modified version published online March 2022).

单词	manno-
释义	manno-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Some degree of stress is always maintained on the first syllable. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. mannoheptose Brit. /ˌmanə(ʊ)ˈhɛptəʊz/, /ˌmanə(ʊ)ˈhɛptəʊs/, U.S. /ˌmænoʊˈhɛpˌtoʊs/, /ˌmænoʊˈhɛpˌtoʊz/. Origin: Formed within English, by compounding. Etymons: mannose n., -o- connective. Etymology: < mann- (in mannose n.) + -o- connective.Formations are found from the late 19th cent. Chemistry and Biochemistry. Forming the names of compounds and substances derived from or containing mannose, as mannoglycerate, mannoheptose, mannoheptulose, mannoketoheptose, manno-octose, manno-octulosonate; mannosaccharic adj. See also mannoprotein n. ΚΠ 1888 Jrnl. Chem. Soc. 54 934 Mannosephenylhydrazone, C₁₂H₁₈N₂O₅, is prepared by heating 200 grams of mannitol.] 1890 Jrnl. Chem. Soc. 58 i. 598 The compounds obtained from mannose receive the names mannoheptose, mannoctose, mannoheptitol, mannoctonic acid, etc. 1911 Encycl. Brit. XXV. 893/2 Cyclic configuration especially leads to the highest values known: the lactic acid with 3° leads to a lactone with −86°,..mannosaccharic acid..to a dilactone..with 202°. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xlvii. 721 With d-mannose only one d-mannoheptose can be isolated. Similarly the d-mannoheptose yields only one mannooctose, and this only one nonose. 1938 Thorpe's Dict. Appl. Chem. (ed. 4) II. 286/2 The natural ketoheptoses are d-mannoketoheptose present in the Avocado pear; [etc.]. 1953 G. E. Fogg Metabolism of Algae vi. 93 In many species of Ceramiales, Gigartinales and Cryptonemiales, sodium mannoglycerate is more abundant than floridoside. 1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) II. lxxiii. 1793/1 Interference with glucose metabolism in the islet tissue by mannoheptulose or 2-deoxyglucose inhibits insulin secretion. 1992 C. A. Smith & E. J. Wood Biosynthesis iv. 73 Both N-acetylneuraminate (sialate) and 3-deoxy-D-mannooctulosonate (KDO), a key sugar in the lipid A region of lipopolysaccharides, are donated from CMP derivatives. This is a new entry (OED Third Edition, September 2000; most recently modified version published online March 2022). < comb. form1890
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