A slightly acrid gum resin produced by the common hemp (
Cannabis sativa), of the variety
Indica, when cultivated in a warm climate; also, the tops of the plant, from which the resinous product is obtained. It is narcotic, and has long been used in the East for its intoxicating effect. The active psychoactive principle has been identified as
tetrahydrocannabinol. See
Bhang, and
Ganja. [
1913 Webster]