e-cigarette

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e-cig·a·rette

 (ē′sĭg′ə-rĕt′)
n.
A cylindrical battery-powered device consisting of a liquid-filled cartridge with a heating element that vaporizes a mixture of chemicals, typically containing propylene glycol or glycerol (or both), nicotine, and flavorings, allowing the user to inhale the aerosol vapor in the manner of a cigarette.

e-cigarette

n
1. (Electronics) a hand-held electronic vaporizer which dispenses inhalable nicotine, used to simulate the effect of smoking. Also called (in full): electronic cigarette Often shortened to: e-cig
2. (Medicine) a hand-held electronic vaporizer which dispenses inhalable nicotine, used to simulate the effect of smoking. Also called (in full): electronic cigarette Often shortened to: e-cig
[C21: from e-2 + cigarette]