Is short for cultivated variety, and is defined as a plant that has been “created or selected intentionally and maintained through cultivation”. Plants that are practically indistinguishable from one another in appearance but are nevertheless unique in their composition and therefore are used to treat distinct diseases. A particular species of plants the chemical composition of which varies from the average because of different environmental growing conditions. Also called chemotype. Variations found within plant cultivars (groups) No level of cannabis consumption is considered safe before driving To convert or be converted into vapour (gaseous state). The action or practice of inhaling and exhaling a vapour produced by an electronic cigarette or similar device. The degree to which a medication or substance (a toxin or poison) can harm humans or animals. Being toxic or poisonous. Finding the proper dose of a medication by adjusting the dose to get maximum benefit with the least amount of unwanted effects. For the effects of a medication to continue for an extended period.