Can·na·bin n. Chem. A poisonous resin extracted from hemp (Cannabis sativa, variety Indica). The euphoric and narcotic effects of hasheesh are due to this resin; the active ingredient is tetrahydrocannabinol, THC. See Cannabis Indica, below.
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cannabin
n : a resin obtained from the hemp plant; thought to be the
active narcotic agent in marijuana [syn: cannabis resin]