taro

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A widely cultivated tropical Asian aroid plant (Colocasia esculenta) having broad peltate leaves and large starchy edible tubers.
• noun The tuber of this plant.
• noun Any of several similar plants of the South American genus Xanthosoma, having sagittate leaves.
• noun The starchy edible tuber of this plant.

from The Century Dictionary.

• noun A gold coin of the Arab emirs of Sicily of the tenth and eleventh centuries; of the Lombard dukes of the seventh century; of the Two Sicilies under Norman rule in the fourth century; of Amalfi in the eleventh century.
• noun A food-plant, Colocasia antiquorum, especially the variety esculenta, a native of India, but widely cultivated in the warmer parts of the globe, particularly in the Pacific islands.
• noun A money of account and coin of silver, and also of copper, formerly used in Malta under the Grand Masters.

from the GNU version of the Collaborative International Dictionary of English.

• noun (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 tuberous rootstocks, which are cooked and used for food in tropical countries.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Colocasia esculenta, raised as a food primarily for its corm, which distantly resembles potato.
• noun Any of several other species with similar corms and growth habit in Colocasia, Alocasia etc.
• noun Food from a taro plant.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun herb of the Pacific islands grown throughout the tropics for its edible root and in temperate areas as an ornamental for its large glossy leaves
• noun edible starchy tuberous root of taro plants
• noun tropical starchy tuberous root