noun
fissility
Technical term for the property of being capable of undergoing nuclear fission. Used in physics and nuclear engineering.
ウラン235は核分裂性が高い。
Uranium-235 has high fissility.
noun which may take the genitive case particle 'no'
fissile; fissionable
Adjectival use with の, describing materials that can undergo nuclear fission. Often used in contexts like 核分裂性物質 (fissile material).
プルトニウムは核分裂性の物質だ。
Plutonium is a fissile material.
核分裂 means 'nuclear fission' (the process), while 核分裂性 refers to the property of being fissionable.
Compound of 核 (nucleus) + 分裂 (fission) + 性 (property). A straightforward technical term formed from standard Sino-Japanese elements.