The very serious Oxford dictionaries Oxford announced Thursday to have added this year 500 new words including one that interests us particularly : « E-cigarette". It is therefore defined as follows:
an "e-cigarette": a cigarette-shaped device containing a liquid based on nicotine or other substances that is vaporized and inhaled in order to simulate the smoking experience"
Even if the definition presented is a little surprising, we will be satisfied to appreciate the presence of the word “E-cigarette” in such a document.
Source : Oxford Dictionaries