car·bo·hy·drate /-ˌdret, drət/
  碳水化合物,醣
  car·bo·hy·drate /-ˌdret, drət/ 名詞
  碳水化合物,糖類
  Car·bo·hy·drate n.  Physiol. Chem. 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.
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  carbohydrate
       n : an essential structural component of living cells and source
           of energy for animals; includes simple sugars with small
           molecules as well as macromolecular substances; are
           classified according to the number of monosaccharide
           groups they contain [syn: saccharide, sugar]