entrainment

noun

1. Any of several processes in which a solid or liquid is put into motion by a fluid.

2. The carrying away of droplets of liquid during violent boiling

3. The movement of sediment in a stream of water or in a glacier

4. The mixing of air currents

5. The mixing of out flowing river water and underlying seawater.

6. (biology) The alignment of an organism's circadian rhythm to that of an external rhythm in its environment