atomic mass unit

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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.

atomic mass unit

n
(Units) a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12. It is equivalent to 1.66 × 10–27 kg. Abbreviation: amu Also called: unified atomic mass unit or dalton

atom′ic mass′ u′nit


n.
a unit of mass, equal to 1/12 the mass of the carbon-12 atom and used to express the mass of atomic and subatomic particles.
Also called dalton.
[1950–55]

atomic mass unit

A unit of mass equal to 1/12 the mass of an atom of the most common isotope of carbon (carbon 12), which is assigned a mass of 12. A hydrogen atom has a mass of 1 atomic mass unit since its mass is 1/12 the mass of carbon 12.

atomic mass unit

(amu)
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atomic mass unit - unit of mass for expressing masses of atoms or molecules
mass unit - a unit of measurement for mass
Translations
unidade de massa atômica
References in periodicals archive ?
An example of use is to analyze the size and composition of viral complexes between proteins and nucleic acids that can have masses in the order of megadalton and the exact determination of isotopically resolved masses in a complex mixture of peptides after isotope exchange.
Bruker's maXuis II ultra-high-resolution quadrupole time-off-light mass spectrometer system allows the simultaneous analysis of small molecules and megadalton proteins on one analytical platform.
Lee JY, Spicer AP (2000) Hyaluronan: a multifunctional, megaDalton, stealth molecule.