Tranquilizer vs Tranquilizes - What's the difference?

As a noun tranquilizer

is that which tranquillizes or soothes.

third-person singular of tranquilize.

* tranquiliser, tranquilliser (mainly UK) * tranquillizer (mainly US)

(wikipedia tranquilizer) (en noun)

That which tranquillizes or soothes.

(pharmacology) A drug used to reduce anxiety or tension; a sedative.

(head)

(tranquilize)

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* tranquillize, tranquilise, tranquillise

To use a drug to sedate a person or animal.

To make something or someone tranquil; to pacify or calm.

To become tranquil; to relax.

To calm down.

* tranquilizer ----