octosen.
/ˈɒktəʊz/, /ˈɒktəʊs/, U.S. /ˈɑkˌtoʊs/ Chemistry.
Any monosaccharide having eight carbon atoms in the molecule, esp. when these are all in an unbranched chain.
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octose1890
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.
1931 R. J. Williams Introd. Biochem. iii. 26 Aldoheptoses, octoses, nonoses and a decose have been made synthetically.
1962 D. J. Bell in M. Florkin & H. S. Mason Compar. Biochem. III. vii. 297 The first natural octose, d-glycero- d-mannoctulose..has recently been isolated from an aqueous extract of the Californian avocado.
1971 Eur. Jrnl. Biochem. 21 457/1 The ‘stem names’ of the acyclic aldoses having three, four, five, six, seven, eight, nine, ten etc., carbon atoms in the chain are triose, tetrose, pentose, hexose, heptose, octose, nonose, decose etc.
1998 Science 18 Dec. 2215/3 The inner core possesses two octose and two heptose residues, and the outer core contains three hexose residues.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
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