atomicmass
atomic mass n.
The mass of an atom, usually expressed in atomic mass units.

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Universalium. 2010.

Look at other dictionaries:

  • atomicmass unit — atomic mass unit n. Abbr. amu A unit of mass equal to 1/12 the mass of the most abundant isotope of carbon, carbon 12, which is assigned a mass of 12. Also called dalton. * * * …   Universalium

  • gram-atomicmass — gram a·tom·ic mass (grămʹə tŏmʹĭk) n. The mass of one mole of atoms of an element. Also called gram atomic weight. * * * …   Universalium

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