a device for turning liquid into vapor, as an atomizer, esp. one that converts a medicinal substance into a vapor that is inhaled for respiratory relief.
Main Entry: va·por·iz·er Variant: also Britishva·por·is·er/-"rI-z&r/ Function: noun : onethat vaporizes: as a:ATOMIZERb: a device for converting water or a medicated liquid intoa vapor for inhalation