1. The process by which a moving fluid carries along particles or other fluids mixed within it.
Usage: common in physics and engineering contexts
2. The synchronization of a biological rhythm or process with an external periodic stimulus, such as light or sound.
Usage: used in biology, chronobiology, and neuroscience
3. The act of drawing someone into a situation or activity, often gradually or without full awareness.
Usage: general usage

Examples

• The entrainment of air bubbles in the water created a foamy mixture.
• Light exposure causes entrainment of the body's circadian rhythm.
• The entrainment of young people into social media can happen without their realizing it.
• Entrainment of sediment by the river current shaped the landscape over centuries.
• Neural entrainment to musical beats helps explain why we move to rhythm.
• The gradual entrainment of the community into the project increased participation.