Analog: A name used by electronic cigarette users to describe traditional tobacco cigarettes.

Atomizer ("attys"): One of the components inside an electronic cigarette which functions with low heat to turn e-liquid into vapor so it can be inhaled. Atomizers are used on a multitude of products from perfume bottles, inhalers and cooking sprays.

Battery: This typically rechargeable component provides power to the atomizer when the user inhales on the mouthpiece. Most electronic cigarettes employ a lithium ion battery which ranges in size. An LED light glows to signal activation from inhalation or when the button is pushed on some batteries.

Battery (Automatic): An electronic cigarette battery which automatically functions when someone inhales (no switch).

Battery (Manual): An electronic cigarette battery which functions only when a button is pressed while inhaling. They typically produce more vapor that an automatic battery.

Battery (Pass-through): Unlike batteries, the pass-through plugs into a USB port on your computer to allow you to vape without worrying about battery life. They also run at a higher voltage so you often get warmer vapor and increased throat hit from them.
You can also use a PT with a portable USB power supply or a USB power adapter, as long as they are compatible.

Battery Charger: There are many different battery charger types available to charge an electronic cigarette. These include standard wall outlet, car and USB chargers. Adapters are available to use an electronic cigarette in the car or to convert chargers for travelling.

Blank Cartridges: Cartridges which come filled with a dry material and ready for the user to add their own e-liquid.

Carcinogen: A substance which is known to cause cancer in humans.

Cartomizer: A combination disposable atomizer and cartridge employed by 2-piece electronic cigarettes. This can be refillable and non-refillable.

Cartridge ("carts"): The cartridge sits within the mouthpiece and contains absorbent material (the wick). This is where flavored liquid containing nicotine is stored. When the liquid is depleted it can either be refilled or replaced with a new pre-filled cartridge.

Cigar Style: The e-cigar looks similar to a cigar. Thicker around than most other e-cigs, they employ a similar cartridge to the pen-style, with a greater capacity. E-cigars can sometimes hold as much as 1.5mL of e-liquid. There are also disposable e-cigars available, which look extremely similar to an actual cigar with no external mouthpiece.

Coil: The metal filament that is wrapped around (or threaded inside) the wicking material.  It is heated by the battery and its length on the wick determines its ohms.

Condoms: The rubber sleeves that come on the ends of cartomizers or are often provided when testing flavors for hygenic purposes.

Clearomizer: A clearomizer is a cartridge without the polyfill. It has a wick and a coil but no filler material.

Cutoff: Some battery models utilize a cutoff mechanism to turn off the battery when it is overused; this protects the atomizer from burning out and the user from inhaling too much nicotine.

Drip/Dripping: A method of dripping e-liquid directly onto the atomizer or fill material to refill an electronic cigarette.

Drip Tip: Used to directly drip E-liquid onto the atomizer or into a cartomizer. Preferred by some for comfort as the soft drip tips feel more like a cigarette filter in the mouth.

Disposable E-Cigarette: A single-use electronic cigarettes designed to throw away when the e-liquid is empty. There are many shapes and sizes of disposable e-cigarettes & e-cigars on the market. These are not refillable.

Electronic Cigarette ("e-cig", "personal vaporizer"): An electronic Cigarette is a battery-powered electronic device that converts a liquid nicotine or non-nicotine solution (e-liquid) into water vapor. Many resemble traditional analog cigarettes in size, shape and color, but they are also manufactured to mimic pens, cigars and pipes.

E-Liquid ("juice"): The nicotine or non-nicotine solution used in an e-cigarette. This solution usually consists of nicotine dissolved in propylene glycol (PG) and/or vegetable glycerin (VG), natural and artificial flavorings and water. Both PG and VG are common food additives and create vapor at low temperatures. Flavors often imitate well-known cigarette brands, tobacco flavors, menthol, fruit and other flavors. Hundreds of different flavors are available. Nicotine concentrations range from zero to extra-high (0 mg to 54mg).

mg: Milligrams.

Micro Cigarette: 50mm – 99mm in size, a compromise between physical size and liquid capacity/battery life. These generally look quite a bit more like a traditional cigarette, but are still slightly larger. Mini cartridges vary greatly, but usually contain between .5mL to 1mL of e-liquid.

Mini-Cigarette: A small version of an e-cigarette, ranging in size from 116mm – 139mm.

Mod: Short for modification, this is a homemade or purchased design alteration of a manufactured battery, atomizer or cartridge. Mods are generally done and/or used by avid e-smokers looking to increase vapor production, battery life or ease of use.

Mouthpiece: The tip of an electronic cigarette which is placed into the mouth. It often looks like a cigarette butt. This piece houses the cartridge in a 3-piece model. 2-piece models contain the cartridge and the atomizer.

Nicotine Level: The amount of nicotine present in a cartridge or bottle of e-liquid. It is usually measured in mg/ml.

NRT: Abbreviation for Nicotine Replacement Therapy, this is a device which has been approved by the FDA to assist nicotine-dependent individuals in their attempt to quit tobacco use.

Priming: A puffing technique used on automatic batteries to produce the most vapor. This requires taking a deep inhale to “warm up” the atomizer. Once warmed, the battery is primed.

Propylene Glycol (PG): Propylene Glycol is the most commonly used base carrier for nicotine and flavor solutions for electronic cigarettes. It is also commonly used in inhalers, medicines, foods, and other consumer products.

Portable Charging Case ("PCC"): A case that allows you to charge your battery on the go, no need for a power source like a computer or wall adapter. Usually can also hold a couple of cartomizers/cartridges.

Starter Kits ("blister pack"): This is usually where new users begin when they try their first electronic cigarette. A starter kit can contain anything from the basics (battery, clearomizer and charger) to a complete assortment of parts and accessories.

Tank: A container that holds a substantial amount of liquid that has a coil at the bottom, generally clear so the amount is visible

THR: Tobacco Harm Reduction – policy or practice of providing less harmful nicotine containing products.

Throat Hit: A descriptive term used for the sensation felt in the back of the throat when an inhalation is taken from an electronic cigarette. A good throat hit closely mimics the feeling from traditional cigarette smoking. Nicotine levels greatly affect throat hit strength with higher nicotine levels having a harder throat hit sensation.

Vape: The act of inhaling vapor from an electronic cigarette.

Vaping: An alternative word for e-smoking; the habit or pastime of using electronic cigarettes. Many electronic cigarette users call themselves, “Vapers” and participate in “Vaping” instead of smoking.

Vapor: (vapour): The smoke-like vapor produced from an electronic cigarette when e-liquid is turned from a liquid to a gas by the atomizer. This vapor is a pure food grade version similar to the smoke produced by a fog machine. The most common ingredient is propylene glycol or vegetable glycerin.

Vaporizer: The electronic component which turns e-liquid into a gas or a vapor. This is also another term used for Electronic Cigarette.

Variable Voltage:

Vegetable Glycerin (VG): Vegetable Glycerin is a natural alternative to Propylene Glycol and is sometimes used as the majority base in the E-Liquid. Vegetable Glycerin comes from the production of palm or coconut oils and is suitable to be used in sweeteners and in skin care products. It creates a slightly thicker vapor.

Wick: A poly fiber with the appearance of cotton. Usually a silica thread that soaks up e-liquid to be vaporized by the heating element.