Bdellium

Bdellium (dĕl'ē-əm) (Hebrew bedolach), also bdellion, is an aromatic gum like myrrh that is exuded from a tree. A medieval Arab writer first made the identification with gum guggul, the species Commiphora wightii, although "bdellium" has also been used to identify the African species Commiphora africana and at least one other Indian species, C. stocksiana. Bdellium was an adulterant of the more costly myrrh (Commiphora myrrha); guggul is still used as a binder in perfumes.