mass defect

mass defect

noun Physics.
the amount by which the mass of an atomic nucleus differs from the sum of the masses of its constituent particles, being the mass equivalent of the energy released in the formation of the nucleus.
Compare binding energy.


Origin:
1925–30

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mass defect
 
n
physics See also binding energy the amount by which the mass of a particular nucleus is less than the total mass of its constituent particles

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