1. SYN: respirator (2). 2. An apparatus for administering pharmacologically active agents by inhalation.
- metered-dose i. a device used to administer a defined dose of medication for inhalation; used frequently in the treatment of asthma and other respiratory conditions.
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in·hal·er in-'hā-lər n a device by means of which usu. medicinal material is inhaled compare INHALATOR
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in·hal·er (in-hālґər) 1. an apparatus for administering vapor or volatilized medications by inhalation. 2. ventilator (def. 2).Medical dictionary. 2011.