Vaping glossary

Our vaping glossary of commonly used terms will help you navigate this rapidly developing category

Vaping glossary


The heater coil that warms the e-liquid and turns it into vapour. 


The power source. This is either activated by pressing a button or inhaling, depending on the device. 


A combination of atomiser and cartridge, which is part of a single-use vaping device. 


Cannabidiol. One of the 113 cannabinoids derived from the cannabis plant. It provides the relaxation of cannabis, without the high, which comes from THC.

Find out more: What is CBD 

Charging port

Most devices can be charged with a micro USB cable. 


E-cigarettes that look similar to a traditional cigarette.


These contain an atomiser and a cartridge. It has a clear tank and heating coil, and can be reused. 

Closed tank system

A vaping device that uses closed e-liquid flavour pods.


Vapour that is exhaled. 


A wire heated by the battery. E-liquid is turned into vapour by this part of the device. 


A device that can only be used once. 


What happens when you overfill the atomiser with e-liquid. It results in a wet, gurgling noise when used. 


When e-liquid seeps out of the device. 


Milliampere hour. Commonly used to measure the capacity of a battery. The more mAh, the longer it lasts. 

Mg strength

The amount of nicotine in an e-liquid per millilitre. The maximum strength legal in the UK is 20mg/ml. 


The part of the device that the user inhales through. 

Nic salts

An e-liquid that contains the same form of nicotine found in tobacco. It enters the bloodstream quicker and offers a comparable experience to smoking. 

Nicotine shot

A flavourless bottle of nicotine that can be added to short fills. 


Nicotine replacement therapy. A controlled way of reducing tobacco consumption over time. 


Unit of electrical resistance. The lower the ohm, the faster coils heat up and produce more vapour.

Open system

A device that enables consumers to mix in their own e-liquids. 

PG liquid

Propylene glycol. The higher this number, the bigger the ‘throat hit’. 


A flavour capsule that is built for convenience. 

Short fill

Nicotine-free e-liquid that can be used with open systems. 


Vaping with a sub-ohm device increases the amount of flavour produced. Sub-ohm levels are marked as less than one ohm. 


The part of the device that holds the e-liquid. 

Throat hit

The feeling when vapour hits a user’s throat. Often used to describe the experience to traditional cigarettes. 

VG liquid

Vegetable glycerin. The higher this number, the more ‘cloud’ produced by the liquid. 

Vape Retailer - April 2020

Vape Retailer

The leading vape magazine for the convenience sector, Vape Retailer’s mission is to demystify the vaping category through industry-leading insight and actionable advice.