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heptose
heptose n. 
/ˈhɛptəʊs/, /ˈhɛpˌtoʊz/ [ < German heptose (E. Fischer 1890, in Berichte der Deutsch. Chem. Ges. 23 934): see -ose suffix2] any of a group of monosaccharides, C7H14O7, present in some plants and as constituents of some bacterial polysaccharides.
Brit. /ˈhɛptəʊz/
, /ˈhɛptəʊz//ˈhɛptəʊs/U.S. /ˈhɛpˌtoʊs/
, /ˈhɛpˌtoʊs//ˈhɛpˌtoʊz/ΘΚΠ
the world > matter > chemistry > organic chemistry > carbohydrates > sugars > monosaccharides > [noun] > by number of carbon atoms > having 7 carbon atoms
heptose1890
1890 Jrnl. Chem. Soc. 58 i. 598 The author proposes to employ the terms pentose, heptose, octose, &c., for the sugars..and heptonic acid, octonic acid, &c., for the acids of the series, according to the number of carbon-atoms in the compounds.
1916 A. P. Mathews Physiol. Chem. 18 The monosaccharides are in their turn classified by the number of carbon atoms, or more properly by the aldehyde, ketone and alcohol groups they contain into bioses, trioses, tetroses, pentoses, hexoses, heptoses, octoses, nonoses, etc.
1952 J. K. N. Jones in E. M. Rodd Chem. Carbon Compounds I b. xx. 1264 Heptose sugars may exist in ketose and aldose forms.
1960 Adv. in Carbohydrate Chem. 15 288 Whereas, in the Enteric group of bacteria, there is as yet no evidence for the presence of heptoses other than l-glycero- d-manno-heptose, this is not true of other Gram-negative groups.
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