核分裂
Meanings
1
Physics term for the splitting of an atomic nucleus, releasing energy. Commonly used in contexts of nuclear power and weapons.
Nuclear power generation uses the energy of nuclear fission.
A large amount of heat is produced by the fission of uranium-235.
2
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.
Nuclear division occurs during the process of cell division.
Karyokinesis is observed in both mitosis and meiosis.
Usage patterns
- 核分裂が起きるfor nuclear fission to occur
Nuclear fission of uranium occurs inside the reactor.
- 核分裂を起こすto cause/trigger nuclear fission
A neutron strikes the atomic nucleus and triggers nuclear fission.
- 核分裂によってエネルギーが放出されるenergy is released by nuclear fission
A huge amount of energy is released by nuclear fission.