- The act of drawing in the breath.
- Drawing in a medicated vapor with the breath.
- A solution of a drug or combination of drugs for administration as a nebulized mist intended to reach the respiratory tree.
- Drawing in or exposed to an agent (gas, vapor, or particulate) that is contained in inspired or inspirable air.
[L. in-halo, pp. -halatus, to breathe at or in]
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Examples: glitazone, GI cocktail, etc.