- any of various chiefly Old World plants belonging to the genus Curcuma, of the ginger family, as C. domestica, yielding turmeric, or C. zedoaria, yielding zedoary.
- any tropical Asian tuberous plant of the genus Curcuma, such as C. longa, which is the source of turmeric, and C. zedoaria, which is the source of zedoary: family Zingiberaceae
