ethnopharmacology
/ˌɛθnəʊˌfɑːməˈkɒlədʒi/noun
The traditional knowledge and customs of a people concerning medicinal substances (especially of plant, but also of animal and mineral, origin); the use of such a substance in traditional medicine; the branch of pharmacology that deals with this.
Origin
1960s. From ethno- + pharmacology. Compare earlier ethnobotany.