Noah Webster
Relaxation
RELAXA'TION, noun [Latin relaxatio.]
1. The act of slackening or remitting tension; as a relaxation of the muscles, fibers or nerves; a relaxation of the whole system.
2. Cessation of restraint.
3. Remission or abatement of rigor; as a relaxation of the law.
4. Remission of attention or application; as a relaxation of mind, study or business.
5. An opening or loosening.