en plutonium (n)
― IsA ⟶
Weight: 1.0
en fissionable material (n) Source: OpenCyc 2012
en fissionable material (n)
― IsA ⟶
Weight: 1.0
en nuclear fuel (n) Source: OpenCyc 2012
en uranium (n)
― IsA ⟶
Weight: 1.0
en fissionable material (n) Source: OpenCyc 2012
en fissile material (n)
― IsA ⟶
Weight: 1.0
en fissionable material (n) Source: OpenCyc 2012