Cannabis glossary — terms A–Z

The compact reference for cannabis terminology — for beginners and pros alike, with a Swiss context.

The cannabis lexicon defines 200+ terms from A for 'absorption' to V for 'vaporiser' — with botanical, pharmacological, cultural and legal focus. Every entry links a deeper article and flags common misinterpretations.

Definition and context

This glossary explains the key technical terms of the Swiss cannabis market—from COA and decarboxylation to chemovar and trichome—in two to three sentences each.

The situation in Switzerland

Many terms originate from the English-speaking market and are often used imprecisely in the Swiss trade. This glossary contextualises these terms and provides references to the relevant legal framework where applicable.

What this means in practice

Anyone who fully understands the three terms COA, total THC, and chemovar can evaluate any product offer on the Swiss market—regardless of how it is marketed.

Frequently asked questions

What is a COA?

A Certificate of Analysis: a laboratory report for a specific batch that details its cannabinoid profile, the testing laboratory, and the analysis date.

What does chemovar mean?

Classification based on the actual active ingredient profile rather than the commercial name—making it far more informative than simply 'Indica' or 'Sativa'.

What does decarboxylated mean?

The process of heating whereby the acidic precursors THCA and CBDA are converted into their active forms, THC and CBD.

Background and development

The terminology of Swiss cannabis has evolved alongside major legislative milestones under the Federal Narcotics Act (BetmG). For decades, strict prohibition shaped the vernacular, but the landscape shifted significantly when Switzerland established a unique 1% total THC threshold for industrial and low-THC cannabis. Since 1 August 2022, medical cannabis has been accessible via regular prescription without requiring exceptional FOPH authorization, placing Swissmedic in charge of manufacturing standards. Simultaneously, the Federal Office of Public Health (FOPH) approved pioneering, strictly regulated pilot studies in major cities including Zurich, Basel, Bern, Lausanne, and Geneva. These pilot projects allow the legal sale and consumption of recreational cannabis within scientific frameworks. Consequently, the Swiss vocabulary has transitioned from informal street slang to precise botanical, analytical, and legal terms, reflecting a highly regulated market where consumers and researchers require a standardized language to evaluate product safety, cannabinoid profiles, and legal compliance across different cantons.

Distinctions and misconceptions

Navigating Swiss cannabis terms requires clearing up several common misconceptions regarding legality, possession, and traffic laws. A frequent error is confusing legal low-THC cannabis (often called CBD cannabis) with complete legal immunity. While products containing under 1% total THC are legal to purchase, possessing up to 10 grams of high-THC cannabis is decriminalized and subject only to a CHF 100 fixed penalty, rather than criminal prosecution. Another dangerous assumption is that consuming legal CBD cannabis does not affect driving status. In reality, Switzerland enforces a strict road traffic limit of 1.5 µg/L of THC in blood. Because legal Swiss low-THC flowers can contain up to 1% THC, regular consumption can easily push blood levels past this threshold, resulting in severe legal consequences for drivers. Distinguishing between total THC and pure CBD percentage, and understanding how these impact biological limits, is vital for legally compliant consumption.

Decision guide for Switzerland

For an adult consumer in Switzerland, making informed purchasing decisions relies on verifiable metrics rather than marketing claims. First, always request and review a valid Certificate of Analysis (COA) issued by an accredited Swiss laboratory. This document verifies that the total THC content remains strictly below the legal 1% threshold and details the complete cannabinoid and terpene profile, which defines the chemovar. Avoid products that lack batch-specific testing or those making unsubstantiated health promises, as Swiss law prohibits medical claims for non-registered products. When buying legal low-THC products, expect prices to vary based on cultivation methods, such as indoor or greenhouse. Ensure the retailer transparently displays compliance with the Federal Narcotics Act and provides clear labeling. Any adult aged 18 or older can join a Swiss cannabis club to access verified, high-quality products and educational resources, ensuring safe, responsible, and fully compliant integration into the Swiss cannabis landscape.

What is the difference between total THC and delta-9-THC under Swiss law?

Under Swiss regulations, the legal 1% limit applies to total THC, not just active delta-9-THC. Total THC is calculated using a formula that accounts for tetrahydrocannabinolic acid (THCA), which converts to active THC when heated. This distinction is crucial because raw flower might have low active delta-9-THC but high THCA, potentially pushing the total THC level over the legal threshold once decarboxylated.

How does the 10-gram possession rule apply in Switzerland?

In Switzerland, possession of up to 10 grams of cannabis with a total THC content over 1% is decriminalized for adults. If stopped by authorities with this amount or less, you will not face criminal prosecution or a mark on your criminal record. Instead, the law prescribes a fixed penalty fine of CHF 100, provided no other offenses are committed simultaneously, ensuring a uniform approach across all cantons.

Explore this topic further

These guides explain the background and address practical questions in the Swiss context.

Key figures

  • 220’000+ — Swiss adults regularly consume cannabis (BAG · Suchtmonitoring 2024)
  • 36% — of 15–34 year-olds have tried cannabis (EMCDDA · Country Report Switzerland 2024)
  • CHF 582M — estimated Swiss cannabis black-market revenue per year (Uni Genf · Cannabis Market Estimate 2023)
  • 7 — cities with active or approved pilot projects (BAG · Cannabis Pilotversuche 2026)

Current research

  • Cannabis use in Switzerland — Addiction Monitoring 2024 — Sucht Schweiz, BAG · 2024
  • European Drug Report — Cannabis Chapter — EMCDDA, EUDA · 2024
  • WHO Expert Committee on Drug Dependence — Cannabis Review — WHO ECDD, WHO · 2023