noun
Physics term for the splitting of an atomic nucleus, releasing energy. Commonly used in contexts of nuclear power and weapons.
原子力発電は核分裂のエネルギーを利用している。
Nuclear power generation uses the energy of nuclear fission.
ウラン235の核
A large amount of heat is produced by the fission of uranium-235.
noun
karyokinesis; nuclear division
Biological term for the division of a cell nucleus during mitosis or meiosis. Less common in everyday language; mainly used in biology contexts.
細胞分裂の過程で核分裂が起こる。
Nuclear division occurs during the process of cell division.
核分裂は有糸分裂と減数分裂の両方で見られる。
Karyokinesis is observed in both mitosis and meiosis.