A carbohydrate is a biomolecule consisting of carbon, hydrogen and oxygen atoms, usually with a hydrogenâoxygen atom ratio of 2:1; in other words, with the empirical formula Cm(H2O)n. This formula holds true for monosaccharides. Some exceptions exist; for example, deoxyribose, a sugar component of DNA, has the empirical formula C5H10O4. The carbohydrates are technically hydrates of carbon; structurally it is more accurate to view them as aldoses and ketones. The term is most common in ...
Card Security Code (CSC). The card security code (CSC), also known as the Card Verification Value (CVV) is a 3- or 4-digit number associated with your credit card, printed only on the card and not on statements or charge slips.
Also Known As. The CVC code may be called another name, depending on the card's issuer, network or type. The merchant you use may also determine what it's called. For example, Hilton calls it a CVV, while Skype refers to it as a CVC. A 1 or 2 after the letters refers to the where the code is written on the card. For example, the CVV1 is written in the magnetic strip, while the CVV2 refers to the actual three or four digits printed on the card.