Definition from Wiktionary, the free dictionary
Alternative forms 
vaporizer (plural vaporizers)
- A device with a heating element, used to vaporize a liquid.
- Vaporizers are used in electronic cigarettes to simulate smoke.
- (medicine) A device with a heating element, used to vaporize a liquid solution with medicine. The produced vapor condensates into fine aerosols, forming a mist inside the device, to be inhaled by the patient for delivery of the medicine into the lungs.