Carbohydrate /(?)/

Car·bo·hy·drate

Carbohydrate

n.
  1. One of a group of compounds including the sugars, starches, and gums, which contain six (or some multiple of six) carbon atoms, united with a variable number of hydrogen and oxygen atoms, but with the two latter always in proportion as to form water; as dextrose, C6H12O6. (Physiol. Chem.)