Industry Terms

Industry Terms & Commonly Used Slang

Scratching your head over what “kief” is? 

Since many of our learners are newbies in the cannabis industry, you might see confusing words or phrases in the community. Browse our glossary to find a variety of cannabis term definitions and become more educated on industry terminology. 

This glossary will clear up the confusion and get you speaking like a native GC'er in no time! Also, please add new glossary terms if you see anything missing.

Browse the glossary using this index

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The part of a cannabis plant seedling that develops into a root, the root tip.


Rastafari, sometimes termed Rastafarianism, is an Abrahamic religion that developed in Jamaica. Scholars of religion and related fields have classified it as both a new religious movement and a social movement. There is no centralized authority in control of the movement and much heterogeneity exists among practitioners, who are known as Rastafari, Rastafarians, or Rastas.


A term commonly used when the cannabis supply is running low and they need to go to their supplier to replenish their stocks. It can also be used as a general term for anyone who needs to buy more cannabis.


A byproduct slime that forms as the result of dabbing - it's essentially the resin-equivalent of an oil rig. You can smoke it, but, like resin, many people find it gross, smelly, and undesirable. It also looks pretty ugly in your uncleaned rig.


Hydroponic system that reclaims the nutrient solution and recycles it.


Recreational drug use is used to intentionally change one’s state of consciousness in order to produce feelings of elation. In the cannabis industry, recreational cannabis can be purchased at a recreational dispensary by anyone who is typically 21 years or older with a valid government-issued identification.


A very broad slang term for cannabis or substances derived, it can be used to refer to the buds themselves but is also used to talk about a bowl, joint, or pipe. It's suspected the name originates with the Spanish word 'grifa,' which means a drug addict. The slang term was popularized through the movie 'Reefer Madness,' an infamous propaganda piece that attempted to demonize the cannabis plant and its users.


A mature plant, having completed its life cycle (flowering) that is stimulated by a new 18-hour photoperiod, to rejuvenate or produce new vegetative growth.

Relative Humidity

Ratio betwee the amount of moisture in the air and the greatest amount of moisture the air could hold at the same temperature.

Residual Solvent

Any remaining solvent contained within a concentrate post-extraction and purging, there are very strict limits on the amount of residual solvent allowed in cannabis products.

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