1.
collapse; disintegration; breakdown
The process of something falling apart or breaking down, whether physical structures, systems, or social institutions.
建物が崩壊した。
The building collapsed.
家族の崩壊は社会問題だ。
The breakdown of the family is a social issue.
ソ連の崩壊は世界を変えた。
The collapse of the Soviet Union changed the world.
2.
decay (physics)
In physics, the process by which an unstable atomic nucleus loses energy, such as radioactive decay.
放射性崩壊で別の元素に変わる。
It changes into a different element through radioactive decay.
核崩壊の速度は半減期で表す。
The rate of nuclear decay is expressed as half-life.
ベータ崩壊によって中性子が陽子に変わる。
In beta decay, a neutron changes into a proton.
崩壊 describes collapse or disintegration.
WORD FORMATION:
- 崩 (crumble, collapse) + 壊 (break, destroy)
SENSE 1 (GENERAL COLLAPSE):
Used for physical structures, systems, or institutions.
- 建物の崩壊: building collapse
- 家族の崩壊: family breakdown
- 体制の崩壊: system collapse
SENSE 2 (PHYSICS):
Specifically refers to radioactive or nuclear decay.
- 放射性崩壊: radioactive decay
- 核崩壊: nuclear decay
- アルファ/ベータ/ガンマ崩壊: alpha/beta/gamma decay
VERB FORM:
崩壊する - to collapse, to disintegrate