To put aboard a railway train; as, to entrain a regiment.

To go aboard a railway train; as, the troops entrained at the station.

board a train

to reset or align with the biological clock.

To initiate a new cycle of an organism's internal clock. Many biological rhythms are entrained by such environmental cues as sunlight and temperature.

Entrain to rearrange or align with the biological clock.

To draw in and transport, (as solid particles or gas), by the flow of a liquid.

To trap bubbles in water either mechanically through turbulence or chemically through a reaction.

Trap and retain; gas bubbles in liquid or solid or air in concrete. To suspend in a vapor, so that the vapor will carry the liquid away in distillation or evaporation.

To draw along as a current does; as, water entrained by steam.

To capture and pull along