nuclear fission is a mean of width
fission is nuclear_reaction. multiple_fission is reproductive_fission. natural_nuclear_fission_reactor is uranium. uncontrolled_nuclear_fission is nuclear_fission. nuclear_fission is spewing. nuclear_fission is transformation_process. fission is asexual_reproduction. nuclear_fission is nuclear_process. prokaryotic_fission is reproductive_fission. controlled_nuclear_fission is nuclear_fission.