核かく分ぶん裂れつ性せい

noun

fissility

Technical term for the property of being capable of undergoing nuclear fission. Used in physics and nuclear engineering.

• ウラン235は核かく分ぶん裂れつ性せいが高たかい。

  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).

• プルトニウムは核かく分ぶん裂れつ性せいの物ぶっ質しつだ。

  Plutonium is a fissile material.