cannabis
n. uncountablen. a drug made from the dried leaves and flowers of the hemp plant. People use it for medical reasons or to relax, though it is illegal in many places.
n. a preparation of the hemp plant, Cannabis sativa, used as a psychoactive drug or medicine. The term encompasses various forms including marijuana and hashish.
The doctor discussed using cannabis to help manage the patient's chronic pain.
Several countries have recently changed their laws to allow the sale of cannabis for recreational use under strict government regulation.
While the therapeutic benefits of cannabis for certain neurological conditions are well-documented, researchers continue to study the long-term effects of its active compounds on adolescent brain development.
Uncountable when referring to the drug or the plant species in general.