ALL meanings of atomic mass
a·tom·ic mass
A a - noun atomic mass the mass of an isotope of an element in atomic mass units 3
- noun atomic mass the mass of a given atom, usually expressed in atomic mass units: it is the atomic weight multiplied by the atomic mass unit 3
- noun atomic mass the mass of an isotope of an element measured in units formerly based on the mass of one hydrogen atom taken as a unit or on 1/16 (0.0625) the mass of one oxygen atom, but after 1961 based on 1/12 (0.0833) the mass of the carbon-12 atom. Abbreviation: at. m. 1
- noun atomic mass mass of atomic particle 1
- noun atomic mass mass of isotope 1
- noun atomic mass The mass of an atom. 0
- noun atomic mass (proscribed) atomic weight; the average mass of atoms of an element. 0