Binding energy is the energy required to disassemble a whole system into separate parts. A bound system typically has a lower potential energy than the sum of its constituent parts; this is what keeps the system together. Often this means that energy is released upon the creation of a bound state. This definition corresponds to a positive binding energy.
近义、反义、联想词
近义词
n.
mass
英英词典
mass defect n.
the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles