1. to board a train
2. to carry along or sweep up (as particles in a fluid stream)
Usage: technical
3. to synchronize or coordinate (biological rhythms or processes)
Usage: scientific

Examples

• Passengers began to entrain at the platform.
• The soldiers entrained for their deployment overseas.
• The river’s current can entrain sediment and debris.
• Air bubbles become entrained in the flowing water.
• Light exposure helps entrain our circadian rhythms.
• The medication helped entrain her sleep cycle.
• We need to entrain before the departure whistle blows.