Yes, relaxations is a Scrabble word!

Noun

1. (physiology) the gradual lengthening of inactive muscle or muscle fibers
2. (physics) the exponential return of a system to equilibrium after a disturbance
3. A feeling of refreshing tranquility and an absence of tension or worry
4. An occurrence of control or strength weakening
5. Freedom from activity (work or strain or responsibility)
6. A method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount
7. The act of making less strict