Dab Nail - the component of a dab rig that's heated in order to vaporize rosin and take dabs. Dab nails can be quartz, ceramic, or glass.
Dabs - globs of cannabis rosin, dropped onto a hot nail or banger to be vaporized and inhaled. Dabs are taken on dab rigs which range from basic bongs to intricate glass pieces.
Dab Mat - a mat (often silicone-coated) placed underneath a dab rig to catch any dripping cannabis concentrate that may drip from the nail during use.
Dab Rig - the piece of equipment with which one takes dabs! Dab rigs are composed of a glass piece, nail, dabber, torch, and carb cap.
Dab Tool - a long, pointy metal or glass tool used to pickup dabs of rosin to drop on a heated nail for inhalation.
Decarboxylation - the heating of cannabis to induce a chemical reaction that transforms molecules from their acidic, non-psychoactive form into a form that gives us desirable, therapeutic effects. Decarboxylation occurs at around 220 degrees Fahrenheit after about 30-40 mins. Cannabis will naturally decarboxylate over time, and also during combustion with smoked cannabis.
Deep Water Culture (DWC) - a hydroponics system in which roots are submerged in a tub of water and receive all their nutrients through the aerated nutrient-rich water.
Defoliation - a method of aggressively pruning excess fan leaves and small branches from a cannabis plant in it's vegetative growth stage. This allows for more light to pass through into lower flower regions of the plant, increases air circulation around the plant, helps maximize space in the garden, and provides some stress to the plant to stimulate more vigorous growth. Too much defoliation can stunt a plant's growth, so the right amount of pruning is key.
Dewaxing - a process of cleaning up a cannabis concentrate to remove plant waxes and lipids in the product, usually using butane. Dewaxing can take place in a closed loop system and is an alternative to the process of winterization.
Diamonds and Sauce - a unique and exquisite form of solventless concentrate that includes two different consistencies of rosin. Diamonds are solid, crystal-like formations of highly-potent THC concentrations that glimmer in a so-called sauce, or the form of concentrate that naturally stays runny due to its high terpene content.
Diffuser - an optional component of a dab rig that increases bubbles and airflow as the cannabis smoke or vapor passes through water in the chamber.
Directional Flow Method - a technique that helps direct and optimize the flow of rosin during extraction. The method involves folding parchment paper in a specific way that creates a direct path for rosin to quickly flow through the filter bag, away from the heated plates, and onto parchment for collection. Learn how to fold the Directional Flow Method here.
Distillate - a form of cannabis concentrate that includes only a specific cannabinoid (normally THC) stripped away from all other plant lipids, waxes, cannabinoids, and terpenes. Distillate is created using solvents, generally BHO, followed by winterization and decarboxylation processes.
Dolomite Lime - a natural source of calcium and magnesium for cannabis plants, dolomite lime can be added to the soil to provide these important micronutrients. Dolomite lime also acts as a pH buffer, helping to keep soil pH levels in check. When using already nutrient-rich soil to start, dolomite lime is generally not required to provide the plant with what it needs. Trace amounts of micronutrients can also be found in tap water.
Dome - an element of the dab rig, a dome is a glass piece that fits over the nail to help capture the vapor after the dab is placed on the heated nail.
Domeless Nail - refers to using a nail for dabs without placing a glass dome on top to help capture vapor.
Dosage - the size or frequency of a dose of cannabis. Dosage is an indicator of how much cannabis is consumed. The optimal cannabis dosage is different for different people, and some experimentation is needed.
Downstem - the component of a glass dab rig that holds the nail or banger and connects it to the chamber.
Dry Sift - also known as kief, dry sift is cannabis concentrate that's made by agitating cannabis flowers over a screen filter. Trichome heads fall through the screen filter and are collected below, known as the dry sift. Dry sift is a source material for rosin production.
Dual In-line Package (DIP) - the first generation of LED grow lights for cannabis, DIP lights include tiny lights spread evenly within the fixture. Each mini light is encased within hard plastic and has two straight, parallel connecting pins.