to decay
01
腐る, 分解する
to be gradually damaged or destroyed as a result of natural processes
Intransitive
例
Wood can decay if left untreated and exposed to moisture.
木材は、処理されずに湿気にさらされると腐敗する可能性があります。
1.1
劣化する, 朽ちる
(of a structure or an area) to become worse gradually
Intransitive
例
The old house began to decay after years of neglect.
その古い家は、何年も放置された後、劣化し始めました。
02
腐敗する, 劣化させる
to cause gradual destruction or damage of something
Transitive: to decay sth
例
Neglecting proper dental hygiene can decay tooth enamel, leading to cavities and eventual tooth loss.
適切な歯の衛生を怠ると、歯のエナメル質が劣化し、虫歯や最終的に歯の喪失につながる可能性があります。
03
崩壊する, 分解する
(of a radioactive substance) undergoe fission or emits radiation, resulting in the transformation of its atomic nucleus into a different element or isotope
Intransitive: to decay into an element or isotope
例
Uranium-238 decays into thorium-234 through a process of alpha decay.
ウラン238はアルファ崩壊の過程を通じてトリウム234に崩壊します。
Decay
01
a gradual decrease in stored charge, current, or signal strength
例
The capacitor showed slow decay of its charge.
02
the gradual process of decline, deterioration, or loss of quality, and the resulting inferior state
例
The moral decay of society concerned the philosopher.
03
the decomposition or rotting of organic matter
例
The fruit was soft and showed signs of decay.
04
the spontaneous disintegration of a radioactive substance, emitting ionizing radiation
例
Uranium undergoes radioactive decay over millions of years.
