(transitive) To calm (a person or animal) or put them to sleep using a drug. / (transitive, now literary) To make (something or someone) tranquil. / (intransitive, obsolete, rare) To become tranquil.

simple past tense and past participle of tranquilize

Third-person singular simple present indicative form of tranquilize

That which tranquillizes or soothes. / (pharmacology) A drug used to reduce anxiety or tension.

plural of tranquilizer

plural of tranquility, alternative spelling of tranquillity

The state or quality of being tranquil; tranquillity.

plural of tranquillity

Third-person singular simple present indicative form of tranquillize

The act of tranquillizing; calming