atomic mass

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atomic mass

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

atomic mass

n
1. (Chemistry) the mass of an isotope of an element in atomic mass units
2. (Chemistry) short for relative atomic mass See atomic weight

atom′ic mass′


n.
the mass of an isotope of an element measured in units based on 1/12 the mass of the carbon-12 atom. Abbr.: at. m.

atomic mass

The mass of a given atom or molecule, expressed in atomic mass units. Compare atomic weight.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atomic mass - (chemistry) the mass of an atom of a chemical element expressed in atomic mass unitsatomic mass - (chemistry) the mass of an atom of a chemical element expressed in atomic mass units
mass - the property of a body that causes it to have weight in a gravitational field
combining weight, eq, equivalent weight, equivalent - the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen
meq, milliequivalent - one-thousandth of an equivalent
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
Translations

atomic mass

n (Chem) → massa atomica
References in periodicals archive ?
Contract notice: supply and installation of an isotopic mass spectrometer.
These estimated rates however are higher than the basin average erosion rates calculated using isotopic mass balance in the riverbed sediments.
The atomic number and weight are listed for each element, as well as the naturally occurring isotopes and their isotopic mass, abundance, nuclear spin, and magnetic moment.