Source : Webster's Revised Unabridged Dictionary (1913)

Cannabin \Can"na*bin\, n. (Chem.)
   A poisonous resin extracted from hemp ({Cannabis sativa},
   variety Indica). The narcotic effects of hasheesh are due to
   this resin.

Charras \Char"ras\, n.
   The gum resin of the hemp plant ({Cannabis sativa}). Same as
   {Churrus}. --Balfour.

Source : WordNet®

Cannabis sativa
     n : a strong-smelling plant from whose dried leaves a number of
         euphoriant and hallucinogenic drugs are prepared [syn: {marijuana},
          {marihuana}, {ganja}]