Definition of glucose in English:


Syllabification: glu·cose
Pronunciation: /ˈglo͞okōs


  • 1A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.
    • A hexose; chemical formula: C6H12O6
    More example sentences
    • Yeasts also contain a natural enzyme which will convert sucrose to its component glucose and fructose.
    • The procedure is based on the cleavage of sucrose by invertase to glucose and fructose.
    • Epidermal cells contained low concentrations of sucrose, glucose and fructose, and no fructan.
  • 1.1A syrup containing glucose and other sugars, made by hydrolysis of starch and used in the food industry.
    More example sentences
    • Mix the icing sugar, water and glucose together and bring to the boil.


mid 19th century: from French, from Greek gleukos 'sweet wine', related to glukus 'sweet'.

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