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packing fraction

noun

  1. Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number.

packing fraction

noun

  1. a measure of the stability of a nucleus, equal to the difference between its mass in amu and its mass number, divided by the mass number

packing fraction

/ păk′ĭng /

  1. The ratio of the total volume of a set of objects packed into a space to the volume of that space.
  2. The difference between the isotopic mass of a nuclide and its mass number, divided by its mass number. The packing fraction is often interpreted as a measure of the stability of the nucleus.

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Word History and Origins

Origin of packing fraction1

First recorded in 1925–30

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gallimaufry

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