Is Tranquilization a Word?

noun The act of tranquilizing, or the state of being tranquilized. Also spelled tranquilisation, tranquillisation.

What is tranquilization?

: to make tranquil or calm : pacify especially : to relieve of mental tension and anxiety by means of drugs.

Do you mean by tranquilizer?

Tranquilizer, also spelled Tranquillizer, drug that is used to reduce anxiety, fear, tension, agitation, and related states of mental disturbance. Tranquilizers fall into two main classes, major and minor.