fluid

流体、液体

液体や気体のように流れる性質を持つ物質。

やさしい英語で： A substance that can flow, such as a liquid or a gas.

• Water is a fluid.
• The mechanic checked the brake fluid.
• Both liquids and gases are fluids.

よく使う表現： body fluid, brake fluid, flow of fluid, compressible fluid

滑らかな、流れるような

急に止まらず、滑らかに動いたり変化したりする様子。

やさしい英語で： Moving or changing smoothly and easily, without sudden stops.

• Her movements were fluid.
• The dancer crossed the stage in one fluid motion.
• His fluid writing style makes the story easy to follow.

類義語： smooth, flowing

反対語： jerky, stiff

よく使う表現： fluid movement, a fluid style, fluid motion