A name for several aroid plants (Colocasia antiquorum, var. esculenta, Colocasia macrorhiza, etc.), and their rootstocks. They have large ovate-sagittate leaves and large fleshy rootstocks, which are cooked and used for food in tropical countries.
- A widely cultivated tropical Asian plant (Colocasia esculenta) having broad peltate leaves and a large starchy edible tuber.
- The tuber of this plant.
- A similar plant of the genus Xanthosoma.
- The large starchy tuber of this plant. Also called cocoyam.