Wednesday, October 23, 2019, 12:19 PM
Site: Green CulturED
Course: Green CulturED (GC)
Glossary: Industry Terms

Ultraviolet (or UV)

Light with very short wavelengths, out of the far blue visible spectrum and is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.


Vacuum Oven

The most popular type of solvent purging equipment; uses heat and negative pressure to strip concentrate slurry of residual solvent.

Vape Pen

A smaller version of a regular vaporizer, it’s portable and typically uses pre-filled cartridges available in varying sizes and types of cannabis, including Sativas, Indicas, and Hybrids. In some variations, there is an option to fill the chamber with your own flower or concentrate. Vape pens and their sister product, e-cigarettes, have gained popularity within the world of cannabis because of its discreetness and lack of smell when used.


A vaporizer is a device that functions by heating the flowers or oils to a specific temperature causing them to release an odorless vapor that is then inhaled directly. Studies have shown that vaporizers are a healthier alternative to smoking as the devices are designed to produce an inhalable vapor that preserves the active ingredients of cannabis without destroying the material which could lead to intake of harmful substances.


A distinct cannabis strain or phenotype.


Referring to a cannabis plant's circulatory system which carries sap throughout the body of the plant.


An organism (as an insect) that transmits disease, a pathogen, or an organism that transmits genes, a pollinator.

Vegetative Stage

The vegetative state refers to the growing phase of the cannabis plants characterized by the establishment of a solid root system and full leaf development in preparation for the flowering stage. The vegetative cycle of a cannabis plant takes about 4 - 6 weeks depending on plant strain and the surrounding environment. Growing plants should have access to at least 18 hours of light in a 24-hour cycle to maximize photosynthesis to produce as much leafy foliage as possible. The vegetative stage is also an ideal time to get clones if you are interested in a particular strain.

Vending Machine

A cannabis vending machine is a vending machine for selling or dispensing cannabis. They are currently in use and some may be located in secure rooms in dispensaries. Some may be operated by employees after a fingerprint scan is obtained from the patient. 


An opening such as a window or door that allows the circulation of fresh air in cannabis cultivation.