galbanum in American English
a bitter, bad-smelling Asiatic gum resin, obtained from various plants (genus Ferula) of the umbel family, formerly used in medicine
noun: a gum resin with a peculiar, strong odor, obtained from certain Asian plants of the genus Ferula, used in incense and formerly in medicine
galbanum in British English
noun: a bitter aromatic gum resin extracted from any of several Asian umbelliferous plants of the genus Ferula, esp F. galbaniflua, and used in incense and medicinally as a counterirritant