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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A unique pipe with a nail or skillet used to consume concentrates like wax or shatter. 'Dabbing' involves heating the nail on the rig to a specific temperature with a handheld torch, which evaporates a dab of concentrate when placed on the heated device. This form of consumption is different than smoking from a bowl or pipe with flower and produces a purer inhalation. Dabbing with a rig is quickly gaining popularity in the cannabis industry.


A roach is the end of a joint and is often too small to be smoked for fear of burning ones fingers. As a result, a roach is typically smoked with a roach clip or saved with other roaches to be used in another, stronger joint or added to a bowl. A roach is brown in color because of it high resin consistency due to smoke deposits settling each time it’s inhaled.

Roach Clip

An often metal clip used for holding the end of a joint (roach) as to prevent burning one's fingers.


To weed out inferior, diseased, or undesirable plants from a crop, field, or population area.

Rolling Paper

A specialty paper used for making cigarettes (commercially manufactured filter cigarettes and individually made roll-your-own cigarettes), rolling papers are packs of several cigarette-size sheets, often folded inside a cardboard wrapper.


The underground part of a cannabis plant - roots function to absorb water and nutrients as well as anchor a plant in the ground or to start rooting a cutting or clone.

Root Hormone

A root-inducing substance used for cloning cannabis plants.

Rosin Tech

A solventless extraction method involving the use of a hair straightener or flat iron to apply heat and pressure to cannabis. Using a piece of parchment paper to wrap your flowers or low-grade hash, you set the hair straightener to a specific temperature (opinions vary as to what temperature is best) and then press onto the parchment paper until the oils begin to extract. 

Rotary Evaporator

A piece of machinery used to evaporate and recover ethanol from ethanol-extracted cannabis concentrates.


Ruderalis is one of the three species of cannabis besides Indica and Sativa. Originally, Ruderalis was considered as a wild breed of cannabis that can survive human activities and even adapt to extremely harsh conditions. The plant has small leaves and a short stature that only grows to about 2 feet (or .6 meter) tall hence the name dwarf cannabis. Ruderalis most notable characteristic is its ability to begin flowering based on changes in the plant instead of its environment (auto-flowering). The plant has low Tetrahydrocannabinol (or THC) concentrations making it less favorable for recreational or medical use. It’s native origin is traced back in Russia.

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