An Etymological Dictionary of Astronomy and Astrophysics
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A molecular compound made from just three → chemical elements: → carbon, → hydrogen, and → oxygen. Carbohydrates have the general molecular formula C_xH_2yO_y, and thus were once thought to represent "hydrated carbon." However, the arrangement of atoms in carbohydrates has little to do with → water molecules. Carbohydrates are a source of energy for the body. They include sugars, starches, cellulose and many other compounds found in living organisms. In their basic form, carbohydrates are simple sugars or monosaccharides.

→ carbo-; → hydrate.

To combine chemically with → water.

From → hydr-, → hydro- + -ate a verbal suffix.

Hidridan, from Gk. → hydr-, âbidan, from âb, → water, + -idan infinitive suffix.

Combined with → water molecules.

P.p./adj. of → hydrate.