migration

移住、渡り

人や動物が、そこで暮らすために別の場所へ移ること。

やさしい英語で： The movement of people or animals from one place to another to live there.

• Bird migration begins in autumn.
• The drought caused a large migration of people.
• We tracked the whales during their annual migration south.

使い方： migration from somewhere to somewhere (Migration from villages to cities increased last year.)

よく使う表現： bird migration, seasonal migration, migration to cities, temporary migration

移動、移行

何かが、ある場所や分野から別の場所や分野へ移ること。

やさしい英語で： The movement of something from one place or area to another.

• The team planned the data migration.
• Scientists measured cell migration through the tissue.
• Heat can increase the migration of chemicals into food.

使い方： migration of something into something (The coating prevents migration of chemicals into food.); migration from something to something (Data migration from the old system to the new one took a week.)

類義語： movement, transfer

よく使う表現： data migration, cell migration, migration of chemicals