# entrainment

> English word · Noun · frequency rank #69,828

## Definitions
1. Enthusiasm, liveliness; impulsiveness.
2. Any of several processes in which a solid or liquid is put into motion by a fluid.
3. Any of several processes in which a solid or liquid is put into motion by a fluid.
4. Any of several processes in which a solid or liquid is put into motion by a fluid.
5. Any of several processes in which a solid or liquid is put into motion by a fluid.
6. The alignment of an organism's circadian rhythm to an external rhythm in its environment.

## Etymology
Partly from French entraînement and partly entrain + -ment.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/entrainment