inhaler

Definition of inhaler

inhaler

(in-HAY-ler)
A device for giving medicines in the form of a spray that is inhaled (breathed in) through the nose or mouth. Inhalers are used to treat certain medical problems, such as bronchitis, angina, emphysema, and asthma. They are also used to help relieve symptoms that occur when a person is trying to quit smoking.

Source: NCI Dictionary of Cancer Terms