Cannabis, also known as
marijuana and by other names,
a refers to
preparations of the
Cannabis plant intended for use as a
psychoactive drug and as
medicine.
Chemically, the major
psychoactive compound in marijuana is
delta-9-tetrahydrocannabinol; it is one of 400 compounds in the plant, including other
cannabinoids, such as
cannabidiol,
cannabinol, and
tetrahydrocannabivarin, which can produce sensory effects unlike the psychoactive effects of
THC.
Marijuana is the herbal form of cannabis, and comprises the flowers, the subtending leaves, and the stalks of
mature,
pistillate female plants;
hashish is the
resinous, concentrated form of cannabis.