Reference

The dispensary glossary.

45 words you will hear at the counter, from adjusted THC to odor-proof container, in plain English.

Updated October 2026

45 terms

A

Adjusted THC
Delta-9 THC plus 0.877 times THCA. Illinois uses it to decide which excise tax tier a product falls in.
Adult-use
Cannabis sold to adults 21 and older without a medical card. Also called recreational.
All-in-one
A vape device with the battery and oil built in. You use it until it runs out.

B

Badder
A soft, whipped concentrate with a texture like cake frosting.
Budtender
The person behind the counter who helps you shop.

C

Cannabinoids
The compounds in cannabis, such as THC and CBD.
CBD
Cannabidiol, a cannabinoid that is not intoxicating the way THC is.
Concentrate
An extract that holds much more THC per gram than flower. Residents can possess 5 grams, visitors 2.5 grams.
Cultivar
Another word for strain. Growers often prefer it.

D

Dab
A small amount of concentrate heated and inhaled, usually with a dab rig or e-rig.
Diamonds
Crystalline THC concentrate, often sold in a sauce of terpenes.
Distillate
A highly refined oil used in many vapes and edibles.

E

Eighth
An eighth of an ounce, or 3.5 grams. The most common flower size.
Excise tax
The Illinois purchaser tax on cannabis: 10%, 20% or 25% depending on the product.
Express pickup
Order online, then grab it at the shop without waiting in the main line.

F

Flower
The dried bud of the cannabis plant.

G

Gram
One gram. Concentrates and vape oil are usually sold by the gram or half gram.

H

Half
Half an ounce, or 14 grams. Just under a visitor's 15 gram limit.
Hash
Concentrated resin glands separated from the plant, one of the oldest forms of cannabis.
Hybrid
A plant type label for strains with mixed genetics.

I

Ice water hash
Hash made by agitating the plant in ice water to separate the resin. Solventless.
Indica
A plant type label. Effects vary by person, so do not rely on it alone.
Infused pre-roll
A pre-roll with concentrate added. Much stronger than a regular joint.
Infused product
Anything with cannabis mixed in, like edibles and drinks. Taxed at 20% in Illinois.

L

Last call
The final time a shop rings up sales before closing.
Live resin
Concentrate made from plants frozen right after harvest to keep more aroma.
Live rosin
Rosin pressed from hash made with fresh frozen plants. Solventless.

M

Medical
Cannabis bought through Illinois' medical program. Patients pay much lower taxes.

O

Odor-proof container
What Illinois requires for cannabis in a moving vehicle: sealed, odor-proof and child-resistant.
Ounce
28 grams. Just under a resident's 30 gram flower limit.

P

Phenotype
One specific plant expression of a strain. Breeders hunt for the best ones.
Pre-roll
Flower already rolled into a joint.

Q

Quarter
A quarter ounce, or 7 grams.

R

Rosin
Concentrate pressed from flower or hash using heat and pressure. Solventless.

S

Sativa
A plant type label. Effects vary by person, so do not rely on it alone.
Shatter
A glassy, brittle concentrate.
Smalls
Smaller buds of the same flower, often sold for less.
Social equity
Illinois' licensing program meant to give people from communities hurt by past cannabis enforcement a path to own dispensaries.
Solventless
Concentrates made without chemical solvents, such as rosin and ice water hash.
Strain
A specific variety of cannabis with its own genetics and name.

T

Terpenes
Aroma compounds that give each strain its smell and flavor.
THC
Tetrahydrocannabinol, the main intoxicating cannabinoid. Edible servings are capped at 10 mg in Illinois.
Tincture
Liquid cannabis extract, usually dosed with a dropper.
Topical
A lotion, balm or oil applied to the skin. Illinois labels say DO NOT EAT.

#

510 thread
The standard screw thread most vape cartridges use to connect to a battery.