atomic mass unit

Synonyms:
  • Dalton
German: Atommasseneinheit
Japanese: 原子質量単位

Chemistry. A unit of mass equal to 1/12 the mass of the carbon-12 atom (1.66·10-24 g) . Dalton is frequently used in biochemistry to express molecular mass of macromolecules such as proteins. One kilodalton (kDa) is equal to 1,000 Daltons (Da).

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