Taro \Ta"ro\, n. [From the Polynesian name.]

(Bot.) 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.

Source: Webster's Revised Unabridged Dictionary (1913)