Structure of the electronic cigarette. The electronic cigarette is a Download Scientific Diagram E CIGARETTE definition in American English Collins English Dictionary Cigarette lectronique Gouvernement du Qubec Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, E cigarette Characteristics, Safety Issues, & Regulation Britannica Explainer: What are e cigarettes?