infiltration

潜入、浸透

情報収集や加害などの目的で、場所や集団にひそかに入り込むこと。

やさしい英語で： Secretly entering a place or group, often to collect information or cause harm.

• The guards watched for enemy infiltration.
• Police infiltration of the gang took months.
• Better security could prevent infiltration by foreign agents.

使い方： infiltration of something (The infiltration of the group went unnoticed.); infiltration by someone (The files revealed infiltration by undercover officers.)

類義語： penetration

よく使う表現： enemy infiltration, infiltration of something, prevent infiltration

浸透、浸潤

液体が小さな隙間を通って、土や組織などの内部にしみ込むこと。

やさしい英語で： The process of liquid moving into soil, tissue, or another material through small spaces.

• Rain increased water infiltration into the soil.
• Clay soils often have a low infiltration rate.
• The test measured fluid infiltration into the tissue.

使い方： infiltration into something (Cracks allowed water infiltration into the walls.)

類義語： seepage

よく使う表現： water infiltration, infiltration rate, infiltration into something