en plutonium 241 (n)
― IsA ⟶
Weight: 1.0
en solid (n) Source: OpenCyc 2012
en plutonium 241 (n)
― IsA ⟶
Weight: 1.0
en plutonium (n) Source: OpenCyc 2012
en plutonium 241 (n)
― IsA ⟶
Weight: 1.0
en fissile material (n) Source: OpenCyc 2012
en plutonium 241 (n)
― IsA ⟶
Weight: 1.0
en isotope (n) Source: OpenCyc 2012