1. a substance that flows easily, such as a liquid or gas

1. able to flow easily; not solid
2. changing easily; not fixed or stable
3. smooth and graceful in movement

Examples

• Water is a common fluid found everywhere on Earth.
• The doctor told her to drink more fluids when she was sick.
• Mercury is fluid at room temperature.
• The dancer’s movements were fluid and beautiful.
• Our vacation plans are still fluid and may change.
• The company has a fluid organizational structure.
• Oil is a viscous fluid that flows slowly.