1. the edible tuberous root of the sweet potato vine which is grown widely in warm regions of the United States • Hypernyms: root vegetable • Hyponyms: yam • Part Holonyms: sweet potato vine, Ipomoea batatas 2. egg-shaped terra cotta wind instrument with a mouthpiece and finger holes • Syn: ocarina • Hypernyms: wind instrument, wind 3. pantropical vine widely cultivated in several varieties for its large sweet tuberous root with orange flesh • Syn: sweet potato vine, Ipomoea batatas • Hypernyms: morning glory