The splitting of a heavy nucleus into two roughly equal parts (which are nuclei of lower-mass elements), accompanied by the release of a relatively large amount of energy in the form of kinetic energy of the two parts and in the form of emission of neutrons and gamma rays (source: LBL).
reproduction of some unicellular organisms by division of the cell into two more or less equal parts
a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
