1.
inactivity; inertness; dormancy
The state of being chemically unreactive, biologically dormant, or functionally inactive.
不活性ガスは化学反応を起こしにくい。
Inert gases are unlikely to undergo chemical reactions.
ウイルスが不活性化された状態のワクチンだ。
This is a vaccine made from an inactivated virus.
酸素に触れると劣化するため、不活性ガスを充填した容器で保管する必要がある。
Since it deteriorates on contact with oxygen, it must be stored in a container filled with inert gas.
A compound of 不 (non-/in-) and 活性 (activity/reactivity). Used across scientific, medical, and technical fields to describe things that are chemically unreactive, biologically inactive, or functionally dormant.
The term became widely known during the COVID-19 pandemic through discussions of 不活化ワクチン (inactivated vaccines). In chemistry, 不活性ガス refers to noble gases (helium, neon, argon, etc.) that rarely react with other elements.
The related verb form 不活性化する means "to inactivate."
COMMON COLLOCATIONS:
- 不活性ガス: inert gas; noble gas
- 不活性化: inactivation
- 不活性な状態: inactive state
- 不活性化ワクチン: inactivated vaccine
SIMILAR WORDS:
- 活性: activity; reactivity (the opposite)
- 不活発: inactive; sluggish (more general, less technical)
- 休眠: dormancy (biological context)