Pronunciation: (tûr'mur-ik),[key] —n. 1. the aromatic rhizome of an Asian plant, Curcuma domestica (or C. longa), of the ginger family.
2. a powder prepared from it, used as a condiment, as in curry powder, or as a yellow dye, a medicine, etc.
3. the plant itself.
4. any of various similar substances or plants.