electronic cigarette Syllabification: (e·lec·tron·ic cig·a·rette)Definition of electronic cigarette noun a cigarette-shaped device containing a nicotine-based liquid that is vaporized and inhaled, used to simulate the experience of smoking tobacco:more smokers are turning to electronic cigarettes to help them quit smokingelectronic cigarette in other Oxford dictionaries Definition of electronic cigarette in the British & World English dictionary