The quality or degree of being fissionable.

plural of fissionable

plural of fissioning

(physics) A nuclear reaction in which a large nucleus splits into smaller ones, sometimes accompanied by the simultaneous release of energy.

(biology) The process whereby a cell divides asexually to produce two daughter cells.

An atomic bomb that uses nuclear fission as a source of energy

plural of fission rocket

(astronautics) A spacecraft having a fission reactor that powers the rocket. / (astronautics) A nuclear-pulse rocket that uses fission-based atomic bombs to supply propulsive force.

plural of fission bomb

plural of nuclear fission