proliferation

急増、拡散

何かの数が大幅に、または急速に増えること。

やさしい英語で： A large or rapid increase in the number of something.

• The proliferation of cafes surprised us.
• Cheap phones caused a proliferation of mobile services.
• Residents worry about the proliferation of holiday rentals.

使い方： proliferation of something (The proliferation of apps makes choosing one difficult.)

類義語： growth, multiplication, spread

反対語： decline

よく使う表現： rapid proliferation, proliferation of something

兵器の拡散

強力な兵器がより多くの国や集団に広まること。

やさしい英語で： The spread of powerful weapons to more countries or groups.

• The treaty aims to limit nuclear proliferation.
• Officials discussed weapons proliferation at the summit.
• New inspections could help prevent further proliferation.

よく使う表現： nuclear proliferation, weapons proliferation

増殖

同じ種類の生物や細胞が増えること。

やさしい英語で： The production of more living things or cells of the same kind.

• Warm conditions encourage bacterial proliferation.
• The drug slows the proliferation of cancer cells.
• Researchers measured cell proliferation in the damaged tissue.

類義語： reproduction, multiplication

よく使う表現： cell proliferation, bacterial proliferation

蓄積

時間をかけてたまった大量の物やその集まり。

やさしい英語で： A large amount or collection of something that has gradually built up.

• A proliferation of debris blocked the channel.
• They removed the dense proliferation of material around the opening.
• Years of neglect left a proliferation of clutter in the attic.

類義語： buildup, accumulation

よく使う表現： dense proliferation, proliferation of something